Fixed critical issue that would cause a string to be passed to methods that expect a stream

Author: Byron

git/refs/log.py

@@ -127,7 +127,7 @@ def __init__(self, filepath=None):
 
 	def _read_from_file(self):
 		try:
-			fmap = file_contents_ro_filepath(self._path, stream=False, allow_mmap=True)
+			fmap = file_contents_ro_filepath(self._path, stream=True, allow_mmap=True)
 		except OSError:
 			# it is possible and allowed that the file doesn't exist !
 			return

git/test/refs/test_reflog.py

@@ -34,9 +34,7 @@ def test_base(self):
 		tdir = tempfile.mktemp(suffix="test_reflogs")
 		os.mkdir(tdir)
 
-		# verify we have a ref - with the creation of a new ref, the reflog
-		# will be created as well
-		rlp_master_ro = RefLog.path(self.rorepo.heads.master) 
+		rlp_master_ro = RefLog.path(self.rorepo.head) 
 		assert os.path.isfile(rlp_master_ro)
 
 		# simple read