1To syntax highlight git's commit messages, you need to:
21. Copy syntax/gitcommit.vim to vim's syntax directory:
3$ mkdir -p $HOME/.vim/syntax
4$ cp syntax/gitcommit.vim $HOME/.vim/syntax
52. Auto-detect the editing of git commit files:
6$ cat >>$HOME/.vimrc <<'EOF'
7autocmd BufNewFile,BufRead COMMIT_EDITMSG set filetype=gitcommit
8EOF