Merge pull request 'Fix the DJ topic thing' (#7) from khuxkm/bitbot-modules:fixdjtopic into master

Reviewed-on: #7

tilderadio.py

@@ -347,13 +347,17 @@ class Module(ModuleManager.BaseModule):
 
         topic = event["spec"][0]
         event["user"].set_setting("tilderadio-djtopic", topic)
+        event["stdout"].write(f"Set {event['user'].nickname}'s DJ topic to \"{topic}\".")
 
     @utils.hook("received.command.djtopic")
     @utils.kwarg("help", "get the DJ topic for the active DJ or for any DJ")
     @utils.spec("?<dj>user")
-    def setdjtopic(self, event):
+    def djtopic(self, event):
         dj = event["spec"][0]
         if dj is None:
+            if self.dj is "":
+                event["stderr"].write(f"Nobody is streaming right now.")
+                return
             if event["server"].has_user_id(self.dj):
                 dj = event["server"].get_user(self.dj)
             else: