sudo cp /Applications/Xcode.app/Contents/Developer/usr/bin/git /somewhere/to/backup/just/in/case
sudo rm /Applications/Xcode.app/Contents/Developer/usr/bin/git
sudo ln -s /usr/local/bin/git /Applications/Xcode.app/Contents/Developer/usr/bin/git sudo cp /Applications/Xcode.app/Contents/Developer/usr/bin/git /somewhere/to/backup/just/in/case
sudo rm /Applications/Xcode.app/Contents/Developer/usr/bin/git
sudo ln -s /usr/local/bin/git /Applications/Xcode.app/Contents/Developer/usr/bin/git $ ls $(git --exec-path)