upgpkg: git 1.9.3-1

Also fix FS#30473 and make some other PKGBUILD cleanups.


git-svn-id: svn://svn.archlinux.org/packages/git/trunk@213122 eb2447ed-0c53-47e4-bac8-5bc4a241df78
Merge remote-tracking branch 'packages/git' into mediawiki

Conflicts:
	PKGBUILD