patch applied (ghc): Update a panic message

[Ian Lynagh]

Wed Apr 30 06:10:21 PDT 2008  Ian Lynagh <igloo at earth.li>
  * Update a panic message
  It was (panic "RegisterAlloc.joinToTargets"), but had since moved to
  RegAllocLinear.makeRegMovementGraph.

    M ./compiler/nativeGen/RegAllocLinear.hs -1 +1

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20080430131021-3fd76-12115988f2346b01bfef7cf46f66d923ddcac408.gz