[xmonad] Issue 487 in xmonad: XMonad.Util.Run documentation is incorrect

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Comment #3 on issue 487 by allber... at gmail.com: XMonad.Util.Run  
documentation is incorrect
http://code.google.com/p/xmonad/issues/detail?id=487

Certainly it's worth mentioning; I'm just explaining why it *used* to be  
perfectly valid.

ghc is in the business of breaking lots of formerly working stuff of late,  
it seems.  (Control.Exception; base vs. H'98; ...)