Add support for executables in git-svn patches applied on svn.

tests/patch_test.py

Index: tests/patch_test.py
diff --git a/tests/patch_test.py b/tests/patch_test.py
index 945d5d5e00c1fada2fccb08afade1477c19a3243..4ca45e7e5d630417582741a9c29f96b9c7d90e28 100755
--- a/tests/patch_test.py
+++ b/tests/patch_test.py
@@ -393,6 +393,18 @@ class PatchTest(unittest.TestCase):
     p = patch.FilePatchDiff('wtf2', diff, [])
     self.assertTrue(p)
 
+  def testGitExe(self):
+    diff = (
+        'diff --git a/natsort_test.py b/natsort_test.py\n'
+        'new file mode 100755\n'
+        '--- /dev/null\n'
+        '+++ b/natsort_test.py\n'
+        '@@ -0,0 +1,1 @@\n'
+        '+#!/usr/bin/env python\n')
+    self.assertEquals(
+        [('svn:executable', '*')],
+        patch.FilePatchDiff('natsort_test.py', diff, []).svn_properties)
+
 
 if __name__ == '__main__':
   unittest.main()