Bug 1430011 - Build a Git package for Debian wheezy. r=gps

The one available in Debian wheezy is 1.7.10.4, which is really old, and
on our centos images, we're using 2.8.0rc3, which, while old too, is
more modern. While we may want to go with a more recent version, I'd
rather avoid differing from what we currently use, so use the exact same
version.

--HG--
extra : rebase_source : dfdf75a635073c248faef8a67648b2a83e4a1d84

build/debian-packages/git-wheezy.diff

@@ -0,0 +1,13 @@
+diff -Nru git-2.8.0~rc3/debian/changelog git-2.8.0~rc3/debian/changelog
+--- git-2.8.0~rc3/debian/changelog	2016-03-17 10:28:14.000000000 +0900
++++ git-2.8.0~rc3/debian/changelog	2018-01-12 14:46:45.000000000 +0900
+@@ -1,3 +1,9 @@
++git (1:2.8.0~rc3-1.deb7moz1) wheezy; urgency=medium
++
++  * Mozilla backport for wheezy.
++
++ -- Mike Hommey <glandium@mozilla.com>  Fri, 12 Jan 2018 14:46:45 +0900
++
+ git (1:2.8.0~rc3-1) unstable; urgency=medium
+ 
+   * new upstream release candidate (see RelNotes/2.8.0.txt).

taskcluster/ci/packages/kind.yml

@@ -68,6 +68,17 @@ jobs:
                -e "s/__DATE__/$(date --rfc-2822)/" \
                -e "s/__CODENAME__/wheezy/" debian/changelog
 
+  deb7-git:
+    description: "Modern git for Debian wheezy"
+    treeherder:
+      symbol: Deb7(git)
+    run:
+      using: debian-package
+      dsc:
+        url: http://snapshot.debian.org/archive/debian/20160317T100542Z/pool/main/g/git/git_2.8.0%7Erc3-1.dsc
+        sha256: 6e81a318fb4eb5cca0333b7b6ff0c70dd0097e9fe711b159d5eac4b9f47c6c27
+      patch: git-wheezy.diff
+
   deb7-valgrind:
     description: "Valgrind for Debian Wheezy"
     treeherder: