python2.4 compatibility issue with urlparse

lib/ansible/module_utils/known_hosts.py

@@ -72,6 +72,8 @@ def get_fqdn(repo_url):
         if 'ssh' not in parts[0] and 'git' not in parts[0]:
             # don't try and scan a hostname that's not ssh
             return None
+        # parts[1] will be empty on python2.4 on ssh:// or git:// urls, so
+        # ensure we actually have a parts[1] before continuing.
         if parts[1] != '':
             result = parts[1]
             if ":" in result: