Handle requests without owners.

For some reason some people insert blank lines in their SCM requests.
Since we stop parsing at the first blank line, this results in requests
without owners or branches.  Handle that better.

scripts/process-git-requests/process-git-requests

@@ -308,6 +308,9 @@ def clean_request(items):
     if len(owners):
         request['owner'] = owners.split()[0]
         request['comaintainers'] = owners.split()[1:]
+    else:
+        request['owner'] = ''
+        request['comaintainers'] = []
 
     request['cc_list'] = items['InitialCC'].split()
     request['pkg'] = items['Package Name']