Thanks for pointing this out. While I don't use many channels that require keys, it's not something I have a problem with.
Although, looking at the request, it would make a lot more sense to me to have the channel & key combination together
eg: chan1 key1,chan2 key2,chan3 key3,...
Even if you still had to use an * for the channels that don't have keys, it would be easier (in my opinion) to be able to change it if a channel started (or stopped) using a key.