Fix Repo.__repr__ when subclassed

Author: jan-matejka

git/repo/base.py

@@ -1057,7 +1057,8 @@ def has_separate_working_tree(self):
     rev_parse = rev_parse
 
     def __repr__(self):
-        return '<git.Repo "%s">' % self.git_dir
+        clazz = self.__class__
+        return '<%s.%s %r>' % (clazz.__module__, clazz.__name__, self.git_dir)
 
     def currently_rebasing_on(self):
         """

git/test/test_repo.py

@@ -355,7 +355,7 @@ def test_alternates(self):
         self.rorepo.alternates = cur_alternates
 
     def test_repr(self):
-        assert repr(self.rorepo).startswith('<git.Repo ')
+        assert repr(self.rorepo).startswith('<git.repo.base.Repo ')
 
     def test_is_dirty_with_bare_repository(self):
         orig_value = self.rorepo._bare