Various: Work around msg.args in inFilter() potentially being empty...

...in Limnoria running on Python 3

* Bugtracker
* Encyclopedia
* PackageInfo

Encyclopedia/plugin.py

@@ -384,7 +384,7 @@ class Encyclopedia(callbacks.Plugin):
                 return alias
 
     def inFilter(self, irc, msg):
-        if not msg.prefix:
+        if not (msg.prefix and msg.args):
             return msg
         if not defaultIgnored(msg.prefix, msg.args[0]):
             return msg