Add some lintian overrides for git files that are used for testing.

debian/changelog

@@ -10,6 +10,7 @@ dulwich (0.13.0-1) UNRELEASED; urgency=medium
 
   [ Jelmer Vernooij ]
   * Bump standards version to 3.9.7.
+  * Add some lintian overrides for git files that are used for testing.
 
  -- Jelmer Vernooij <jelmer@debian.org>  Sun, 24 Apr 2016 15:34:54 +0000
 

debian/python-dulwich.lintian-overrides

@@ -0,0 +1 @@
+W: python-dulwich: package-contains-vcs-control-file

debian/python3-dulwich.lintian-overrides

@@ -0,0 +1,2 @@
+# There are some git files that are used for testing:
+W: python3-dulwich: package-contains-vcs-control-file