The zsh-completion path in the caveat was missing the
`share` directory component.
ClosesHomebrew/homebrew#12035.
Signed-off-by: Jack Nagel <jacknagel@gmail.com>
`_git-now` needs to be installed into `share/zsh/site-functions`
not `share/zsh/functions`.
Files in `share/zsh/functions` must not change unless zsh is
upgraded and zsh is restarted. `site-functions` can change during a zsh
process's lifetime.
This will enable homebrew's zsh to automatically use the completion.
See issue Homebrew/homebrew#11936 for details.
ClosesHomebrew/homebrew#11940.
Signed-off-by: Jack Nagel <jacknagel@gmail.com>
