If I want help on the git status command, I can enter git help status, and a help page is returned that says the name is \"git-status\
The correct answer is "history".
Back in the Dim Time (2005ish), each Git command was a single thing:
$ git-init
[initialized new repository ...]
$ git-add Makefile README
$ git-status
...
$ git-commit
People who use bash command completion, though, would soon type git-TAB and get 47,981 obscure git commands such as git-block-area and git-hammer-branch (these are made up, but I hope bring the point across fairly well :-) ). It was time to divide things up into user oriented commands, called porcelain, and low-level commands used internally, called plumbing.
All the commands were renamed and Git added a single front-end command, git. For those using bash command completion, bash reads a "completions file", which lists only the user-oriented porcelain commands. So now gitTAB only lists 30 to 40 or so commands, instead of 100-plus.
All the documentation, however, retains the historic format.