Factor out pprWindowSet (and Xinerama version) from dynamicLog.
Factor out pprWindowSet (and Xinerama version) from dynamicLog.

This patch lets you pretty-print a WindowSet to a string, rather than always
printing it out to stdout directly.

darcs-hash:20070619183657-bffde-8c3bc99141d8cfa091a8662f4d1296f28763797a

kmels/xmonad-launcher,kmels/xmonad-launcher