* Change several 8-space indents to tabs
* Apply tab indent style when breaking long lines
* Move operators from EOL to start of next line
* Fix ternary formatting
* Use r_buf_size to get the size of a buffer, not the private field
* Use r_buf_seek instead of adjusting the private cur RBuffer field
* use r_buf_read instead of r_buf_read_at(.., cur, ..)
* Fix RBuffer usage in REgg
* Introduce r_buf_tell API instead of using seek
* write_at(cur) == write
