pstest: Fix pulling current patchset

* the output of the git ls-remote gets screwy after 9 commits, so fix the logic that is used to determine the most recent patchset

Change-Id: Idcf2075729eb175d4fbeb470060b8de26213d17a
Signed-off-by: Brandon McAnsh <brandon.mcansh@gmail.com>
reposync: make less verbose

  Patch Set 2: Make a system settings so user can toggle.
    Add AOKP_REPOSYNC_QUIET=true to your .profile/.customrc
    to make less verbose, default repo behaviour by default.

Change-Id: Ief4a832aba118216b139d615f29d1b86f1717ba2
Merge commit '26b1563899364061689fa54b71a92a7e7aafca4e' into aokp-kitkat