Slash Command changes?

[nossy]

Not sure what I'm missing here...going through and updating/testing my small addons for MoP and having issues with slash commands on two of my addons but not on the other. With the addons that are not working, if I type /slashcommand the client does not allow me to press enter. Has something changed with the way slash commands are used/initialized in MoP?

This addon works:

AMFG_LazyWTF_Emote_List = {} -- initialize array
SLASH_AMFGLAZYWTF1 = '/wtf';

function SlashCmdList.AMFGLAZYWTF(msg, editbox)
	//Code is here, omitted for simplicity

end

This addon doesn't:

SLASH_AMFGLAZYRC1 = '/rc';
function SlashCmdList.AMFGLAZYRC(msg, editbox)
	//Vode is here, omitted for simplicity
end

Interestingly enough, if I remove the first line from the first addon (the array initialization) that slash command also ceases to work. I'm assuming this is one of those cases of me doing something incorrect that just happens to have worked on Live for the last two xpacs and the latest expansion breaking it.