extract-ofp-fields: Improve error message.
Without this change, it's not obvious what needs to be edited.
Acked-by: Numan Siddique
@@ -757,7 +757,9 @@ ovs\-fields \- protocol header fields in OpenFlow and Open vSwitch
for f in fields:
if "used" not in f:
- fatal("%s: field not documented" % f["mff"])
+ fatal("%s: field not documented "
+ "(please add documentation in lib/meta-flow.xml)"
+ % f["mff"])
if n_errors:
sys.exit(1)
