qgis PKGBUILD: Use shallow clone

gistfile1.diff

--- PKGBUILD.orig	2014-11-13 19:27:21.163524333 +0100
+++ PKGBUILD	2014-11-13 19:33:19.496732366 +0100
@@ -4,6 +4,7 @@
 # Contributor: dibblethewrecker dibblethewrecker.at.jiwe.dot.org
 # Contributor: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
 # Contributor: Eric Forgeot < http://esclinux.tk >
+# Contributor: Sven Karsten Greiner <sven@sammyshp.de>
 
 # GRASS Plugin, Globe Plugin and QGIS Map Server are disabled in cmake by default.
 # Uncomment them in the build() portion if you'd like enabled during the build.
@@ -50,12 +51,14 @@
 provides=("$pkgname=$pkgver")
 conflicts=("$pkgname-git" "$pkgname")
 install="$pkgname.install"
-source=("${pkgname}::git://github.com/qgis/QGIS.git#branch=release-2_6"
-        'https://raw.githubusercontent.com/Ariki/QGIS/support-configure-ng/cmake/FindPyQt.py')
-md5sums=('SKIP'
-         '741c35e251e5623b86c29251567ba1dd')
+source=('https://raw.githubusercontent.com/Ariki/QGIS/support-configure-ng/cmake/FindPyQt.py')
+md5sums=('741c35e251e5623b86c29251567ba1dd')
+_repo='git://github.com/qgis/QGIS.git'
+_branch='release-2_6'
 
 prepare() {
+   git clone --depth 1 --branch "$_branch" "$_repo" "$srcdir/$pkgname"
+
    cd "$srcdir/$pkgname"
    mv "$srcdir/FindPyQt.py" cmake/                  # https://hub.qgis.org/issues/10596