I only want 2.6.3, not 2.6.3+

I'm having great difficulty locating information on how to install specific minor build versions of Moodle. I only want 2.6.3, not 2.6.3+. I'm using git bash. Does anybody know how to do this?! The instructions I have for installing using git only say to type in git clone -b MOODLE_26_STABLE git://git.moodle.org/moodle.git and not anything about the minor branch version number or anything. Whenever I type in the code I get 2.6.3+

Can't seem to find any Moodle docs that discuss this in any detail either...