There are now 22 refs in the test repo

We brought in an updated libgit2 whose test repo gained a ref.

Author: carlosmn

test/repo_test.rb

@@ -87,7 +87,7 @@ def test_match_all_refs
   def test_return_all_ref_names
     refs = @repo.ref_names
     refs.each {|name| assert name.kind_of?(String)}
-    assert_equal 21, refs.count
+    assert_equal 22, refs.count
   end
 
   def test_return_all_tags