[GHC] #9149: Description of openFileBlocking is wrong

[GHC]

#9149: Description of openFileBlocking is wrong
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       Reporter:  edsko             |             Owner:
           Type:  bug               |            Status:  new
       Priority:  normal            |         Milestone:
      Component:  Documentation     |           Version:  7.8.2
       Keywords:                    |  Operating System:  Unknown/Multiple
   Architecture:  Unknown/Multiple  |   Type of failure:  None/Unknown
     Difficulty:  Unknown           |         Test Case:
     Blocked By:                    |          Blocking:
Related Tickets:                    |
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 The documentation states:

 ''Like openFile, but opens the file in ordinary blocking mode. This can be
 useful for opening a FIFO for reading: if we open in non-blocking mode
 then the open will fail if there are no writers, whereas a blocking open
 will block until a writer appears.
 ''
 but I think this is the wrong way around, and should be:

 ''Like openFile, but opens the file in ordinary blocking mode. This can be
 useful for opening a FIFO for writing: if we open in non-blocking mode
 then the open will fail if there are no readers, whereas a blocking open
 will block until a reader appears.
 ''

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9149>
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