update help text on display_protected pragma

mention specification command.

Author: rouilj

roundup/admin.py

@@ -114,8 +114,8 @@ def __init__(self):
         }
         self.settings_help = {
             'display_protected':
-            _("Have 'display designator' show protected fields: "
-              "creator, id etc."),
+            _("Have 'display designator' and 'specification class' show "
+              "protected fields: creator, id etc."),
 
             'indexer_backend':
             _("Set indexer to use when running 'reindex' NYI"),