add simple plugin disable config option

plugins/sieve.py

@@ -1,3 +1,5 @@
+import re
+
 from util import hook
 
 
@@ -18,4 +20,9 @@ def sieve_suite(bot, input, func, kind, args):
             if input.chan.lower() in denied_channels:
                 return None
 
+    fn = re.match(r'^plugins.(.+).py$', func._filename)
+    disabled = bot.config.get('disabled_plugins', {})
+    if fn and fn.group(1).lower() in disabled:
+        return None
+
     return input

plugins/tag.py

@@ -70,7 +70,7 @@ def get_nicks_by_tag(db, chan, subject):
                        " and chan=?"
                        " order by lower(nick)", (subject, chan)).fetchall()
 
-    nicks = [munge(x[0], 3) for x in nicks]
+    nicks = [munge(x[0], 1) for x in nicks]
     if not nicks:
         return 'tag not found'
     return 'nicks tagged "%s": ' % subject + ', '.join(nicks)