Set back aliases_only option for subcommand name

wo/cli/plugins/update.py

@@ -16,6 +16,7 @@ class WOUpdateController(CementBaseController):
         label = 'wo_update'
         stacked_on = 'base'
         aliases = ['update']
+        aliases_only = True
         stacked_type = 'nested'
         description = ('update WordOps to latest version')
         arguments = [