Bug 197890: backed out the previous checkin. For unknown reasons, the

Mozilla trunk Tinderbox machine "beast" had trouble running the cygpath
command.  It failed with the error
"can't create title mutex, Win32 error 6".

security/nss/cmd/shlibsign/sign.sh

@@ -5,7 +5,7 @@ if [ ${3} = "YES" ]; then
     else
         # ARG1 is ${1} with the drive letter escaped.
         if echo "${1}" | grep -c : >/dev/null; then
-            ARG1=`cygpath -u ${1}`
+            ARG1=`(cd ${1}; pwd)`
         else
             ARG1=${1}
         fi