Remove extra dashes in a flag name in the user guide
Remove extra dashes in a flag name in the user guide

olsner/ghc,vTurbine/ghc,vikraman/ghc,AlexanderPankiv/ghc,mcschroeder/ghc,ekmett/ghc,mfine/ghc,lukexi/ghc,GaloisInc/halvm-ghc,mettekou/ghc,vTurbine/ghc,sdiehl/ghc,fmthoma/ghc,oldmanmike/ghc,mcschroeder/ghc,ml9951/ghc,ghc-android/ghc,oldmanmike/ghc,elieux/ghc,ml9951/ghc,siddhanathan/ghc,hferreiro/replay,nkaretnikov/ghc,nushio3/ghc,mfine/ghc,forked-upstream-packages-for-ghcjs/ghc,da-x/ghc,olsner/ghc,mfine/ghc,nkaretnikov/ghc,snoyberg/ghc,AlexanderPankiv/ghc,mettekou/ghc,gcampax/ghc,vikraman/ghc,sgillespie/ghc,tibbe/ghc,snoyberg/ghc,jstolarek/ghc,gcampax/ghc,urbanslug/ghc,sgillespie/ghc,mettekou/ghc,da-x/ghc,siddhanathan/ghc,AlexanderPankiv/ghc,mfine/ghc,frantisekfarka/ghc-dsi,lukexi/ghc-7.8-arm64,hferreiro/replay,nathyong/microghc-ghc,nathyong/microghc-ghc,elieux/ghc,oldmanmike/ghc,sgillespie/ghc,urbanslug/ghc,anton-dessiatov/ghc,nushio3/ghc,nathyong/microghc-ghc,sgillespie/ghc,forked-upstream-packages-for-ghcjs/ghc,mcschroeder/ghc,olsner/ghc,gridaphobe/ghc,anton-dessiatov/ghc,gridaphobe/ghc,ghc-android/ghc,nathyong/microghc-ghc,ghc-android/ghc,elieux/ghc,mcschroeder/ghc,nkaretnikov/ghc,green-haskell/ghc,TomMD/ghc,hferreiro/replay,gridaphobe/ghc,holzensp/ghc,vikraman/ghc,elieux/ghc,anton-dessiatov/ghc,vTurbine/ghc,mcschroeder/ghc,anton-dessiatov/ghc,tjakway/ghcjvm,wxwxwwxxx/ghc,tjakway/ghcjvm,siddhanathan/ghc,urbanslug/ghc,forked-upstream-packages-for-ghcjs/ghc,tjakway/ghcjvm,fmthoma/ghc,christiaanb/ghc,GaloisInc/halvm-ghc,tjakway/ghcjvm,shlevy/ghc,acowley/ghc,green-haskell/ghc,bitemyapp/ghc,vikraman/ghc,frantisekfarka/ghc-dsi,shlevy/ghc,GaloisInc/halvm-ghc,anton-dessiatov/ghc,ryantm/ghc,acowley/ghc,spacekitteh/smcghc,AlexanderPankiv/ghc,lukexi/ghc-7.8-arm64,holzensp/ghc,nushio3/ghc,nkaretnikov/ghc,AlexanderPankiv/ghc,shlevy/ghc,mettekou/ghc,christiaanb/ghc,wxwxwwxxx/ghc,lukexi/ghc,sdiehl/ghc,shlevy/ghc,green-haskell/ghc,forked-upstream-packages-for-ghcjs/ghc,hferreiro/replay,green-haskell/ghc,jstolarek/ghc,holzensp/ghc,vikraman/ghc,fmthoma/ghc,wxwxwwxxx/ghc,vTurbine/ghc,ghc-android/ghc,tibbe/ghc,ghc-android/ghc,vTurbine/ghc,urbanslug/ghc,mettekou/ghc,mcschroeder/ghc,forked-upstream-packages-for-ghcjs/ghc,snoyberg/ghc,lukexi/ghc-7.8-arm64,gridaphobe/ghc,tjakway/ghcjvm,lukexi/ghc,GaloisInc/halvm-ghc,snoyberg/ghc,hferreiro/replay,fmthoma/ghc,ekmett/ghc,AlexanderPankiv/ghc,mettekou/ghc,tibbe/ghc,christiaanb/ghc,ekmett/ghc,elieux/ghc,forked-upstream-packages-for-ghcjs/ghc,anton-dessiatov/ghc,ezyang/ghc,jstolarek/ghc,acowley/ghc,mfine/ghc,ghc-android/ghc,spacekitteh/smcghc,ezyang/ghc,vTurbine/ghc,siddhanathan/ghc,gcampax/ghc,shlevy/ghc,ezyang/ghc,siddhanathan/ghc,urbanslug/ghc,siddhanathan/ghc,acowley/ghc,urbanslug/ghc,wxwxwwxxx/ghc,ezyang/ghc,spacekitteh/smcghc,GaloisInc/halvm-ghc,shlevy/ghc,acowley/ghc,gridaphobe/ghc,christiaanb/ghc,ml9951/ghc,sgillespie/ghc,sdiehl/ghc,mettekou/ghc,olsner/ghc,spacekitteh/smcghc,sdiehl/ghc,da-x/ghc,olsner/ghc,snoyberg/ghc,vikraman/ghc,snoyberg/ghc,sdiehl/ghc,gridaphobe/ghc,gcampax/ghc,holzensp/ghc,shlevy/ghc,mcschroeder/ghc,GaloisInc/halvm-ghc,forked-upstream-packages-for-ghcjs/ghc,wxwxwwxxx/ghc,da-x/ghc,nkaretnikov/ghc,TomMD/ghc,oldmanmike/ghc,GaloisInc/halvm-ghc,oldmanmike/ghc,elieux/ghc,TomMD/ghc,tibbe/ghc,fmthoma/ghc,ryantm/ghc,lukexi/ghc-7.8-arm64,mfine/ghc,lukexi/ghc,snoyberg/ghc,bitemyapp/ghc,olsner/ghc,tjakway/ghcjvm,christiaanb/ghc,sdiehl/ghc,gcampax/ghc,anton-dessiatov/ghc,mfine/ghc,siddhanathan/ghc,wxwxwwxxx/ghc,ml9951/ghc,urbanslug/ghc,ryantm/ghc,ezyang/ghc,sgillespie/ghc,lukexi/ghc-7.8-arm64,hferreiro/replay,nkaretnikov/ghc,ekmett/ghc,acowley/ghc,ryantm/ghc,holzensp/ghc,TomMD/ghc,nkaretnikov/ghc,gcampax/ghc,sgillespie/ghc,nushio3/ghc,elieux/ghc,acowley/ghc,nathyong/microghc-ghc,ryantm/ghc,jstolarek/ghc,bitemyapp/ghc,lukexi/ghc,tjakway/ghcjvm,nushio3/ghc,TomMD/ghc,ml9951/ghc,nathyong/microghc-ghc,vikraman/ghc,spacekitteh/smcghc,oldmanmike/ghc,oldmanmike/ghc,ekmett/ghc,bitemyapp/ghc,nathyong/microghc-ghc,bitemyapp/ghc,fmthoma/ghc,ezyang/ghc,jstolarek/ghc,AlexanderPankiv/ghc,ghc-android/ghc,olsner/ghc,da-x/ghc,da-x/ghc,gridaphobe/ghc,TomMD/ghc,christiaanb/ghc,ml9951/ghc,TomMD/ghc,frantisekfarka/ghc-dsi,fmthoma/ghc,ml9951/ghc,ml9951/ghc,frantisekfarka/ghc-dsi,frantisekfarka/ghc-dsi,nushio3/ghc,ezyang/ghc,christiaanb/ghc,da-x/ghc,tibbe/ghc,green-haskell/ghc,hferreiro/replay,nushio3/ghc,wxwxwwxxx/ghc,vTurbine/ghc,sdiehl/ghc,gcampax/ghc