It seems like `git help -a` doesn't allow third-party commands to have docstrings at all. It seems to call getenv("PATH"), then calls readdir on each folder, fi

It seems like `git help -a` doesn't allow third-party commands to have docstrings at all. It seems to call getenv("PATH"), then calls readdir on each folder, filters out any non-executables that aren't prefixed with "git-", and then lists those under the "External commands" category with no further help. I was hoping there was a way to attach a short help descriptor to each of the third-party commands. But the help descriptors seem to be hardcoded for the builtin commands, with no support for third party commands. Darn.