Reduce the xargs -s value we use on Windows With 30000 I was getting:     xargs: value for -s option should be < 28153
Reduce the xargs -s value we use on Windows
With 30000 I was getting:
    xargs: value for -s option should be < 28153

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