[GHC] #10213: GHC User Guide documentation of -fwarn-tabs is now incorrect

[GHC]

#10213: GHC User Guide documentation of -fwarn-tabs is now incorrect
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              Reporter:  bmjames     |             Owner:
                  Type:  bug         |            Status:  new
              Priority:  normal      |         Milestone:
             Component:              |           Version:  7.10.1
  Documentation                      |  Operating System:  Unknown/Multiple
              Keywords:              |   Type of failure:  Documentation
          Architecture:              |  bug
  Unknown/Multiple                   |        Blocked By:
             Test Case:              |   Related Tickets:
              Blocking:              |
Differential Revisions:              |
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 The [https://downloads.haskell.org/~ghc/7.10.1/docs/users_guide.pdf GHC
 user guide], section 1.5.2.2:

     -fwarn-tabs warning flag is turned on by default with this release of
 GHC.

 However, section 4.8, regarding -fwarn-tabs, still says:

     This warning is off by default.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10213>
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