Very little of git as used by most people is Perl these days; almost everything has been rewritten in C by now. A few things remain, but they're pretty niche: git-send-email, the git-cvs tools (!), git-svn, and git-fast-import (maintained in the contrib/ tree) look to be the only top-level perl things left, at a glance.
haha. fair. if you're going to use a specialized linux distro or use linux for a very targeted purpose (ie rescue CD) you might get away without perl. short of that it's in every mainstream distribution.
6% of git is perl! perl is everywhere!