Bump haddock submodule
Bump haddock submodule

Fixes documentation installation.

sgillespie/ghc,sgillespie/ghc,vTurbine/ghc,vikraman/ghc,ezyang/ghc,shlevy/ghc,vTurbine/ghc,snoyberg/ghc,snoyberg/ghc,sdiehl/ghc,snoyberg/ghc,shlevy/ghc,sgillespie/ghc,ezyang/ghc,ezyang/ghc,sgillespie/ghc,vikraman/ghc,snoyberg/ghc,shlevy/ghc,vTurbine/ghc,mettekou/ghc,sdiehl/ghc,snoyberg/ghc,mettekou/ghc,vikraman/ghc,snoyberg/ghc,mettekou/ghc,shlevy/ghc,olsner/ghc,vikraman/ghc,vTurbine/ghc,vikraman/ghc,vTurbine/ghc,sgillespie/ghc,mettekou/ghc,olsner/ghc,shlevy/ghc,ezyang/ghc,snoyberg/ghc,ezyang/ghc,vTurbine/ghc,sdiehl/ghc,olsner/ghc,vTurbine/ghc,sgillespie/ghc,mettekou/ghc,sdiehl/ghc,vikraman/ghc,mettekou/ghc,ezyang/ghc,shlevy/ghc,olsner/ghc,olsner/ghc,shlevy/ghc,sdiehl/ghc,olsner/ghc,sdiehl/ghc,olsner/ghc,sgillespie/ghc,sdiehl/ghc,mettekou/ghc,ezyang/ghc,vikraman/ghc