[GHC] #5466: Documentation for Chan could be better

[GHC]

#5466: Documentation for Chan could be better
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        Reporter:  pumpkin           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  ⊥
       Component:  Core Libraries    |              Version:  7.2.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Documentation     |  Unknown/Multiple
  bug                                |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by osa1):

 https://phabricator.haskell.org/D3439 maybe doesn't close this ticket but
 it's an improvement.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5466#comment:7>
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