Remove -v flag from some 'git commit' alias from oh-my-zsh
I realised I never look at the diffs, and if I want do I can do it more
pleasantly in my graphical git client of choice, so I'm removing the
`-v` flag from oh-my-zsh's `git commit` aliases.
OTOH if you love `-v` and want it everywhere, this next line should set
you up nicely:
git config --global commit.verbose true