It is one of the slash commands shown when you type /sct. Must be a leftover from old code.
[2008/03/27 00:45:30-1-x1]: sct\sct.lua:693: attempt to call method 'DisplayUseage' (a nil value)
sct\sct.lua:211: in function `value'
Interface\FrameXML\ChatFrame.lua:3032: in function <Interface\FrameXML\ChatFrame.lua:2957>:
<in C code>: ?
<in C code>: in function `ChatEdit_ParseText'
Interface\FrameXML\ChatFrame.lua:2724: in function `ChatEdit_SendText':
Interface\FrameXML\ChatFrame.lua:2745: in function `ChatEdit_OnEnterPressed':
<string>:"*:OnEnterPressed":1: in function <[string "*:OnEnterPressed"]:1>
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