Commit Briefs
NUL-terminate empty logmsg buffer for strlcat(3)
Because the logmsg output buffer was not NUL-terminated after allocation, strlcat(3) could append log message contents copied from the temporary file at a wrong memory location. In the case observed by me, this bug resulted in a broken commit object.
got commit can't use unveil with an editor
Theo says unveil(2) is supposed to traverse exec(2) (though this seems to be broken or not implemented at present). In which case the commmit message editor would find itself without access to files it needs (startup config files, shared libs, user's home dir, etc.) Apply unveil after the log message has been written.
make 'got commit' look up EDITOR in PATH
The previous code only worked if EDITOR contained an absolute path.