move the karma logging into a separate method, since i'm about to reuse it in a new way

modules/Karma.py

@@ -88,9 +88,14 @@ class Karma(Module):
         key = match.group(1) if match.group(1) else match.group(2)
         value = match.group(3)
         if (value == '++'):
-            value = 1;
+            return self.karma_modify(key, 1, nick, userhost)
         else:
-            value = -1;
+            return self.karma_modify(key, -1, nick, userhost)
+
+    def karma_modify(self, key, value, nick, userhost):
+        """
+        Go out to the database and update the karma value.
+        """
 
         conn = self.get_db()
         try: