+:topic
+channel [<chan>] topic set <topic> set topic when alone
+channel [<chan>] topic leave don't (default)
+ If set to `topic set <topic>' then whenever I'm alone in the channel
+ I'll reset the topic; if se to `topic leave' I'll leave it alone.
+channel [<chan>] topic see|tell +|-|= <chan>|* ...
+ I can inform one channel about topic changes in another. Each
+ channel has a `see list' and a `tell list' which may be empty or
+ contain some channel names and/or a `*'. I'll tell channel #spy
+ whenever I see the topic change in #showoff if: #showoff or * is
+ mentioned in #spy's see list, and #spy or * is mentioned in
+ #showoff's tell list, and at least one those mentions is not a `*'.
+ + adds items to the relevant list, - removes them, and = sets the
+ list to exactly those items specified. Both lists are empty by
+ default, but a good permissive value is just `*' for both lists.
+