When I run git add -p, I see:
git add -p
Can\'t locate Git.pm in @INC (@INC contains: /usr/local/lib/perl5/site_perl /Library/Perl/5.12/darwin-thread-multi-2lev
I met the same issue on my Mac OS 10.9.4, and fixed it with the following command:
$ sudo ln -s /Library/Developer/CommandLineTools/usr/share/git-core /usr/share/