gitcmp is a file compare utility. It outputs to stderr, git catching its error messages this way. gitcmp was designed to be used in $HOME/.gitrc.TERM (git configuration file) and should not be used as a stand alone program See section hide.
See section Configuration Files, See section git, See section gitps, See section gitview, See section gitmount, See section gitkeys, See section gitredir, See section gitmatch, See section gitaction, See section .gitaction.