*: --help tweaks

function                                             old     new   delta
packed_usage                                       33589   33552     -37

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

archival/bbunzip.c

@@ -284,7 +284,7 @@ int uncompress_main(int argc UNUSED_PARAM, char **argv)
 //usage:     "\n	-c	Write to stdout"
 //usage:     "\n	-f	Force"
 //usage:     "\n	-k	Keep input files"
-//usage:     "\n	-t	Test file integrity"
+//usage:     "\n	-t	Test integrity"
 //usage:
 //usage:#define gunzip_example_usage
 //usage:       "$ ls -la /tmp/BusyBox*\n"
@@ -407,6 +407,8 @@ int gunzip_main(int argc UNUSED_PARAM, char **argv)
 //usage:     "\n	-c	Write to stdout"
 //usage:     "\n	-f	Force"
 //usage:     "\n	-k	Keep input files"
+//usage:     "\n	-t	Test integrity"
+//usage:
 //usage:#define bzcat_trivial_usage
 //usage:       "[FILE]..."
 //usage:#define bzcat_full_usage "\n\n"
@@ -465,6 +467,7 @@ int bunzip2_main(int argc UNUSED_PARAM, char **argv)
 //usage:     "\n	-c	Write to stdout"
 //usage:     "\n	-f	Force"
 //usage:     "\n	-k	Keep input files"
+//usage:     "\n	-t	Test integrity"
 //usage:
 //usage:#define lzma_trivial_usage
 //usage:       "-d [-cfk] [FILE]..."
@@ -474,6 +477,7 @@ int bunzip2_main(int argc UNUSED_PARAM, char **argv)
 //usage:     "\n	-c	Write to stdout"
 //usage:     "\n	-f	Force"
 //usage:     "\n	-k	Keep input files"
+//usage:     "\n	-t	Test integrity"
 //usage:
 //usage:#define lzcat_trivial_usage
 //usage:       "[FILE]..."
@@ -536,7 +540,7 @@ int unlzma_main(int argc UNUSED_PARAM, char **argv)
 //usage:     "\n	-c	Write to stdout"
 //usage:     "\n	-f	Force"
 //usage:     "\n	-k	Keep input files"
-//usage:     "\n	-t	Test file integrity"
+//usage:     "\n	-t	Test integrity"
 //usage:
 //usage:#define xz_trivial_usage
 //usage:       "-d [-cfk] [FILE]..."
@@ -546,7 +550,7 @@ int unlzma_main(int argc UNUSED_PARAM, char **argv)
 //usage:     "\n	-c	Write to stdout"
 //usage:     "\n	-f	Force"
 //usage:     "\n	-k	Keep input files"
-//usage:     "\n	-t	Test file integrity"
+//usage:     "\n	-t	Test integrity"
 //usage:
 //usage:#define xzcat_trivial_usage
 //usage:       "[FILE]..."

archival/bzip2.c

@@ -56,11 +56,13 @@
 //usage:     "\n	-1..9	Compression level"
 //usage:	IF_FEATURE_BZIP2_DECOMPRESS(
 //usage:     "\n	-d	Decompress"
-//usage:     "\n	-t	Test file integrity"
 //usage:	)
 //usage:     "\n	-c	Write to stdout"
 //usage:     "\n	-f	Force"
 //usage:     "\n	-k	Keep input files"
+//usage:	IF_FEATURE_BZIP2_DECOMPRESS(
+//usage:     "\n	-t	Test integrity"
+//usage:	)
 
 #include "libbb.h"
 #include "bb_archive.h"

archival/gzip.c

@@ -77,11 +77,13 @@ aa:      85.1% -- replaced with aa.gz
 //usage:	)
 //usage:	IF_FEATURE_GZIP_DECOMPRESS(
 //usage:     "\n	-d	Decompress"
-//usage:     "\n	-t	Test file integrity"
 //usage:	)
 //usage:     "\n	-c	Write to stdout"
 //usage:     "\n	-f	Force"
 //usage:     "\n	-k	Keep input files"
+//usage:	IF_FEATURE_GZIP_DECOMPRESS(
+//usage:     "\n	-t	Test integrity"
+//usage:	)
 //usage:
 //usage:#define gzip_example_usage
 //usage:       "$ ls -la /tmp/busybox*\n"

archival/lzop.c

@@ -86,6 +86,7 @@
 //usage:     "\n	-f	Force"
 //usage:     "\n	-U	Delete input files"
 ///////:     "\n	-k	Keep input files" (default, so why bother documenting?)
+//usage:     "\n	-t	Test integrity"
 //usage:     "\n	-v	Verbose"
 //usage:     "\n	-F	Don't verify checksum"
 

coreutils/chgrp.c

@@ -23,13 +23,17 @@
 //usage:#define chgrp_trivial_usage
 //usage:       "[-Rh"IF_DESKTOP("LHPcvf")"]... GROUP FILE..."
 //usage:#define chgrp_full_usage "\n\n"
-//usage:       "Change the group membership of FILEs to GROUP\n"
-//usage:     "\n	-R	Recurse"
+//usage:       "Change the group membership of FILEs to GROUP"
+//usage:     "\n"
 //usage:     "\n	-h	Affect symlinks instead of symlink targets"
 //usage:	IF_DESKTOP(
 //usage:     "\n	-L	Traverse all symlinks to directories"
 //usage:     "\n	-H	Traverse symlinks on command line only"
 //usage:     "\n	-P	Don't traverse symlinks (default)"
+//usage:	)
+//next 4 options are the same for chmod/chown/chgrp:
+//usage:     "\n	-R	Recurse"
+//usage:	IF_DESKTOP(
 //usage:     "\n	-c	List changed files"
 //usage:     "\n	-v	Verbose"
 //usage:     "\n	-f	Hide errors"

coreutils/chmod.c

@@ -26,12 +26,13 @@
 //usage:#define chmod_trivial_usage
 //usage:       "[-R"IF_DESKTOP("cvf")"] MODE[,MODE]... FILE..."
 //usage:#define chmod_full_usage "\n\n"
-//usage:       "Each MODE is one or more of the letters ugoa, one of the\n"
-//usage:       "symbols +-= and one or more of the letters rwxst\n"
+//usage:       "MODE is octal number (bit pattern sstrwxrwxrwx) or [ugoa]{+|-|=}[rwxXst]"
+//usage:     "\n"
+//next 4 options are the same for chmod/chown/chgrp:
 //usage:     "\n	-R	Recurse"
 //usage:	IF_DESKTOP(
 //usage:     "\n	-c	List changed files"
-//usage:     "\n	-v	List all files"
+//usage:     "\n	-v	Verbose"
 //usage:     "\n	-f	Hide errors"
 //usage:	)
 //usage:

coreutils/chown.c

@@ -28,15 +28,19 @@
 //usage:#define chown_trivial_usage
 //usage:       "[-Rh"IF_DESKTOP("LHPcvf")"]... USER[:[GRP]] FILE..."
 //usage:#define chown_full_usage "\n\n"
-//usage:       "Change the owner and/or group of FILEs to USER and/or GRP\n"
-//usage:     "\n	-R	Recurse"
+//usage:       "Change the owner and/or group of FILEs to USER and/or GRP"
+//usage:     "\n"
 //usage:     "\n	-h	Affect symlinks instead of symlink targets"
 //usage:	IF_DESKTOP(
 //usage:     "\n	-L	Traverse all symlinks to directories"
 //usage:     "\n	-H	Traverse symlinks on command line only"
 //usage:     "\n	-P	Don't traverse symlinks (default)"
+//usage:	)
+//next 4 options are the same for chmod/chown/chgrp:
+//usage:     "\n	-R	Recurse"
+//usage:	IF_DESKTOP(
 //usage:     "\n	-c	List changed files"
-//usage:     "\n	-v	List all files"
+//usage:     "\n	-v	Verbose"
 //usage:     "\n	-f	Hide errors"
 //usage:	)
 //usage:

coreutils/cut.c

@@ -29,6 +29,7 @@
 //usage:     "\n	-s	Output only lines containing delimiter"
 //usage:     "\n	-f LIST	Print only these fields"
 //usage:     "\n	-n	Ignored"
+//(manpage:-n	with -b: don't split multibyte characters)
 //usage:
 //usage:#define cut_example_usage
 //usage:       "$ echo \"Hello world\" | cut -f 1 -d ' '\n"

coreutils/echo.c

@@ -43,10 +43,10 @@
 //usage:#define echo_trivial_usage
 //usage:	IF_FEATURE_FANCY_ECHO("[-neE] ") "[ARG]..."
 //usage:#define echo_full_usage "\n\n"
-//usage:       "Print the specified ARGs to stdout"
+//usage:       "Print ARGs to stdout"
 //usage:	IF_FEATURE_FANCY_ECHO( "\n"
-//usage:     "\n	-n	Suppress trailing newline"
-//usage:     "\n	-e	Interpret backslash escapes (i.e., \\t=tab)"
+//usage:     "\n	-n	No trailing newline"
+//usage:     "\n	-e	Interpret backslash escapes (\\t=tab etc)"
 //usage:     "\n	-E	Don't interpret backslash escapes (default)"
 //usage:	)
 //usage:

coreutils/id.c

@@ -52,7 +52,7 @@
 //usage:#define groups_trivial_usage
 //usage:       "[USER]"
 //usage:#define groups_full_usage "\n\n"
-//usage:       "Print the group memberships of USER or for the current process"
+//usage:       "Print the groups USER is in"
 //usage:
 //usage:#define groups_example_usage
 //usage:       "$ groups\n"

e2fsprogs/chattr.c

@@ -24,22 +24,23 @@
 //usage:#define chattr_full_usage "\n\n"
 //usage:       "Change ext2 file attributes\n"
 //usage:     "\n	-R	Recurse"
-//usage:     "\n	-v VER	Set version/generation number"
+//TODD?      "\n	-p NUM	Set project number"
+//usage:     "\n	-v NUM	Set version/generation number"
 //-V, -f accepted but ignored
 //usage:     "\nModifiers:"
 //usage:     "\n	-,+,=	Remove/add/set attributes"
 //usage:     "\nAttributes:"
-//usage:     "\n	A	Don't track atime"
-//usage:     "\n	a	Append mode only"
-//usage:     "\n	c	Enable compress"
-//usage:     "\n	D	Write dir contents synchronously"
+//usage:     "\n	A	No atime"
+//usage:     "\n	a	Append only"
+//usage:     "\n	c	Compressed"
+//usage:     "\n	D	Synchronous dir updates"
 //usage:     "\n	d	Don't backup with dump"
-//usage:     "\n	i	Cannot be modified (immutable)"
-//usage:     "\n	j	Write all data to journal first"
-//usage:     "\n	s	Zero disk storage when deleted"
-//usage:     "\n	S	Write synchronously"
-//usage:     "\n	t	Disable tail-merging of partial blocks with other files"
-//usage:     "\n	u	Allow file to be undeleted"
+//usage:     "\n	i	Immutable"
+//usage:     "\n	j	Write data to journal first"
+//usage:     "\n	s	Zero storage when deleted"
+//usage:     "\n	S	Synchronous file updates"
+//usage:     "\n	t	Don't tail-merge with other files"
+//usage:     "\n	u	Allow undelete"
 
 #include "libbb.h"
 #include "e2fs_lib.h"

editors/cmp.c

@@ -18,7 +18,7 @@
 //kbuild:lib-$(CONFIG_CMP) += cmp.o
 
 //usage:#define cmp_trivial_usage
-//usage:       "[-l] [-s] FILE1 [FILE2" IF_DESKTOP(" [SKIP1 [SKIP2]]") "]"
+//usage:       "[-ls] FILE1 [FILE2" IF_DESKTOP(" [SKIP1 [SKIP2]]") "]"
 //usage:#define cmp_full_usage "\n\n"
 //usage:       "Compare FILE1 with FILE2 (or stdin)\n"
 //usage:     "\n	-l	Write the byte numbers (decimal) and values (octal)"

findutils/grep.c

@@ -63,8 +63,8 @@
 //usage:       "[-HhnlLoqvsrRiwFE"
 //usage:	IF_EXTRA_COMPAT("z")
 //usage:       "] [-m N] "
-//usage:	IF_FEATURE_GREP_CONTEXT("[-A/B/C N] ")
-//usage:       "PATTERN/-e PATTERN.../-f FILE [FILE]..."
+//usage:	IF_FEATURE_GREP_CONTEXT("[-A|B|C N] ")
+//usage:       "PATTERN | -e PATTERN... | -f FILE [FILE]..."
 //usage:#define grep_full_usage "\n\n"
 //usage:       "Search for PATTERN in FILEs (or stdin)\n"
 //usage:     "\n	-H	Add 'filename:' prefix"

miscutils/flashcp.c

@@ -19,9 +19,9 @@
 //kbuild:lib-$(CONFIG_FLASHCP) += flashcp.o
 
 //usage:#define flashcp_trivial_usage
-//usage:       "-v FILE MTD_DEVICE"
+//usage:       "[-v] FILE MTD_DEVICE"
 //usage:#define flashcp_full_usage "\n\n"
-//usage:       "Copy an image to MTD device\n"
+//usage:       "Copy FILE to MTD device\n"
 //usage:     "\n	-v	Verbose"
 
 #include "libbb.h"

procps/free.c

@@ -19,7 +19,7 @@
 //kbuild:lib-$(CONFIG_FREE) += free.o
 
 //usage:#define free_trivial_usage
-//usage:       "" IF_DESKTOP("[-b/k/m/g]")
+//usage:       "" IF_DESKTOP("[-bkmg]")
 //usage:#define free_full_usage "\n\n"
 //usage:       "Display the amount of free and used system memory"
 //usage:

procps/kill.c

@@ -59,7 +59,7 @@
 //usage:       "$ kill 252\n"
 //usage:
 //usage:#define killall_trivial_usage
-//usage:       "[-l] [-q] [-SIG] PROCESS_NAME..."
+//usage:       "[-lq] [-SIG] PROCESS_NAME..."
 //usage:#define killall_full_usage "\n\n"
 //usage:       "Send a signal (default: TERM) to given processes\n"
 //usage:     "\n	-l	List all signal names and numbers"

shell/ash.c

@@ -14398,7 +14398,7 @@ init(void)
 
 
 //usage:#define ash_trivial_usage
-//usage:	"[-il] [-/+Cabefmnuvx] [-/+o OPT]... [-c 'SCRIPT' [ARG0 [ARGS]] / FILE [ARGS] / -s [ARGS]]"
+//usage:	"[-il] [-|+Cabefmnuvx] [-|+o OPT]... [-c 'SCRIPT' [ARG0 [ARGS]] | FILE [ARGS] | -s [ARGS]]"
 ////////	comes from ^^^^^^^^^^optletters
 //usage:#define ash_full_usage "\n\n"
 //usage:	"Unix shell interpreter"

shell/hush.c

@@ -339,7 +339,7 @@
  * therefore we don't show them either.
  */
 //usage:#define hush_trivial_usage
-//usage:	"[-enxl] [-c 'SCRIPT' [ARG0 [ARGS]] / FILE [ARGS] / -s [ARGS]]"
+//usage:	"[-enxl] [-c 'SCRIPT' [ARG0 [ARGS]] | FILE [ARGS] | -s [ARGS]]"
 //usage:#define hush_full_usage "\n\n"
 //usage:	"Unix shell interpreter"
 

sysklogd/logger.c

@@ -26,7 +26,7 @@
 //usage:       "Write MESSAGE (or stdin) to syslog\n"
 //usage:     "\n	-s	Log to stderr as well as the system log"
 //usage:     "\n	-t TAG	Log using the specified tag (defaults to user name)"
-//usage:     "\n	-p PRIO	Priority (numeric or facility.level pair)"
+//usage:     "\n	-p PRIO	Priority (number or FACILITY.LEVEL pair)"
 //usage:
 //usage:#define logger_example_usage
 //usage:       "$ logger \"hello\"\n"

util-linux/dmesg.c

@@ -46,7 +46,7 @@
 //kbuild:lib-$(CONFIG_DMESG) += dmesg.o
 
 //usage:#define dmesg_trivial_usage
-//usage:       "[-c] [-n LEVEL] [-s SIZE]"
+//usage:       "[-cr] [-n LEVEL] [-s SIZE]"
 //usage:#define dmesg_full_usage "\n\n"
 //usage:       "Print or control the kernel ring buffer\n"
 //usage:     "\n	-c		Clear ring buffer after printing"

util-linux/ionice.c

@@ -18,7 +18,8 @@
 //kbuild:lib-$(CONFIG_IONICE) += ionice.o
 
 //usage:#define ionice_trivial_usage
-//usage:	"[-c 1-3] [-n 0-7] [-p PID] [PROG ARGS]"
+//usage:	"[-c 1-3] [-n 0-7] { -p PID | PROG ARGS }"
+//TODO: | -P PGID | -u UID; also -pPu can take _list of_ IDs
 //usage:#define ionice_full_usage "\n\n"
 //usage:       "Change I/O priority and class\n"
 //usage:     "\n	-c N	Class. 1:realtime 2:best-effort 3:idle"