[GHC] #7632: `./sync-all pull` fails in `libraries xhtml`

[GHC]

#7632: `./sync-all pull` fails in `libraries xhtml`
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Reporter:  morabbin          |          Owner:                  
    Type:  bug               |         Status:  new             
Priority:  normal            |      Component:  Build System    
 Version:  7.6.1             |       Keywords:                  
      Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
 Failure:  Other             |      Blockedby:                  
Blocking:                    |        Related:                  
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 `./sync-all pull` fails in `libraries xhtml`
 {{{
 == libraries/xhtml: running git pull
 You are not currently on a branch. Please specify which
 branch you want to merge with. See git-pull(1) for details.

     git pull <remote> <branch>

 git failed: 256 at ./sync-all line 176.
 }}}
 (On branch `master`.)

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7632>
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