contrib/vim/README - git - Git at Google

 To syntax highlight git's commit messages, you need to:
   1. Copy syntax/gitcommit.vim to vim's syntax directory:
      $ mkdir -p $HOME/.vim/syntax
      $ cp syntax/gitcommit.vim $HOME/.vim/syntax
   2. Auto-detect the editing of git commit files:
      $ cat >>$HOME/.vimrc <<'EOF'
      autocmd BufNewFile,BufRead COMMIT_EDITMSG set filetype=gitcommit
      EOF
	To syntax highlight git's commit messages, you need to:
	1. Copy syntax/gitcommit.vim to vim's syntax directory:
	$ mkdir -p $HOME/.vim/syntax
	$ cp syntax/gitcommit.vim $HOME/.vim/syntax
	2. Auto-detect the editing of git commit files:
	$ cat >>$HOME/.vimrc <<'EOF'
	autocmd BufNewFile,BufRead COMMIT_EDITMSG set filetype=gitcommit
	EOF