User: Fix hostmask.list to show the user's name not the repr user object

Signed-off-by: James Vega <jamessan@users.sourceforge.net>
(cherry picked from commit 9dccada152)

plugins/User/plugin.py

@@ -254,7 +254,8 @@ class User(callbacks.Plugin):
                     hostmasks.sort()
                     return format('%L', hostmasks)
                 else:
-                    irc.reply(format('%s has no registered hostmasks.', user))
+                    irc.reply(format('%s has no registered hostmasks.',
+                                     user.name))
             try:
                 user = ircdb.users.getUser(msg.prefix)
                 if name: