fix X.U.Run.spawnPipe fd leak
fix X.U.Run.spawnPipe fd leak

Ignore-this: 24375912d505963fafc917a63d0e79a0

darcs-hash:20091025210246-c9ff5-8862b42a8c811c272ae3e3bc864f32f58488e065

kmels/xmonad-launcher,kmels/xmonad-launcher