Upgrade GIT

Trick source

To upgrade Git itself to 2.x you can run these commands:

$   sudo apt-get install python-software-properties
$   sudo add-apt-repository ppa:git-core/ppa
$   sudo apt-get update
$   sudo apt-get install git

Next, confirm on the commandline that you are using the newer version:

$ git --version
   git version 2.4.6