patch applied (packages/base): add hFlushAll, flushes both read and write buffers

[Simon Marlow]

Tue Jun 23 06:38:18 PDT 2009  Simon Marlow <marlowsd at gmail.com>
  * add hFlushAll, flushes both read and write buffers
  Ignore-this: 70c57b04438d8d9a25225f7694fd1196

    M ./GHC/IO/Handle.hs -1 +21

View patch online:
http://darcs.haskell.org/packages/base/_darcs/patches/20090623133818-12142-60f7877ae1a90f464b4ff7046731d77168645964.gz