> When I run 'git commit', I have no more syntax
highlighting. If I do
> set filetype=gitcommit, it still does not work.
I just checked that those files are NOT missing and are user readable:
/usr/share/vim/vim80/ftplugin/gitcommit.vim
/usr/share/vim/vim80/syntax/gitcommit.vim
This was stupid: my .gitconfig in my home directory was owned by root:root!