Note: help and version output are generated by a naïve script which tries a few variants of
<command> --help, <command> -h etc. to find the command's help and version info.
Sometimes it gets lucky, sometimes it doesn't; if the output below looks wrong, it probably is.
charm --help (return code: 0)
Usage:
/usr/local/bin/charm -h |-? | --help
/usr/local/bin/charm [-l|--line line] file[:line]
/usr/local/bin/charm diff <left> <right>
/usr/local/bin/charm merge <local> <remote> [base] <merged>