ignore this silently, we use a hash so it does not matter

Author: jedwards4b

manic/externals_description.py

@@ -180,6 +180,9 @@ def parse_submodules_desc_section(section_items, file_path):
             path = item[1].strip()
         elif name == 'url':
             url = item[1].strip()
+        elif name == 'branch':
+            # We do not care about branch since we have a hash - silently ignore
+            pass
         else:
             msg = 'WARNING: Ignoring unknown {} property, in {}'
             msg = msg.format(item[0], file_path) # fool pylint