Travis: use validate --quiet to prevent hitting log file limits
Travis: use validate --quiet to prevent hitting log file limits

Currently, this will use `make -s` instead of `make`, such that `make`
doesn't echo the commands it's going to run. And second, it calls the
testdriver with a lower verbosity, such that the shell commands it runs
don't get printed either.

acowley/ghc,siddhanathan/ghc,vTurbine/ghc,mettekou/ghc,sdiehl/ghc,olsner/ghc,nushio3/ghc,oldmanmike/ghc,GaloisInc/halvm-ghc,anton-dessiatov/ghc,shlevy/ghc,ghc-android/ghc,mfine/ghc,GaloisInc/halvm-ghc,gridaphobe/ghc,AlexanderPankiv/ghc,sdiehl/ghc,snoyberg/ghc,anton-dessiatov/ghc,sgillespie/ghc,nkaretnikov/ghc,AlexanderPankiv/ghc,vTurbine/ghc,mcschroeder/ghc,gridaphobe/ghc,gridaphobe/ghc,mcschroeder/ghc,ml9951/ghc,sgillespie/ghc,nushio3/ghc,oldmanmike/ghc,acowley/ghc,nkaretnikov/ghc,anton-dessiatov/ghc,ghc-android/ghc,siddhanathan/ghc,nkaretnikov/ghc,mcschroeder/ghc,GaloisInc/halvm-ghc,urbanslug/ghc,tjakway/ghcjvm,nkaretnikov/ghc,olsner/ghc,AlexanderPankiv/ghc,shlevy/ghc,ezyang/ghc,mettekou/ghc,TomMD/ghc,nushio3/ghc,ml9951/ghc,da-x/ghc,elieux/ghc,ml9951/ghc,AlexanderPankiv/ghc,urbanslug/ghc,vikraman/ghc,tjakway/ghcjvm,ghc-android/ghc,da-x/ghc,da-x/ghc,ezyang/ghc,tjakway/ghcjvm,vikraman/ghc,sdiehl/ghc,vTurbine/ghc,oldmanmike/ghc,urbanslug/ghc,siddhanathan/ghc,vikraman/ghc,mcschroeder/ghc,GaloisInc/halvm-ghc,elieux/ghc,nushio3/ghc,elieux/ghc,TomMD/ghc,sdiehl/ghc,oldmanmike/ghc,wxwxwwxxx/ghc,ml9951/ghc,elieux/ghc,nushio3/ghc,sgillespie/ghc,wxwxwwxxx/ghc,ghc-android/ghc,acowley/ghc,olsner/ghc,siddhanathan/ghc,mfine/ghc,urbanslug/ghc,snoyberg/ghc,tjakway/ghcjvm,mcschroeder/ghc,snoyberg/ghc,AlexanderPankiv/ghc,olsner/ghc,ezyang/ghc,olsner/ghc,shlevy/ghc,ml9951/ghc,ml9951/ghc,shlevy/ghc,sgillespie/ghc,urbanslug/ghc,ml9951/ghc,oldmanmike/ghc,acowley/ghc,shlevy/ghc,wxwxwwxxx/ghc,olsner/ghc,wxwxwwxxx/ghc,olsner/ghc,urbanslug/ghc,TomMD/ghc,vTurbine/ghc,mettekou/ghc,anton-dessiatov/ghc,da-x/ghc,mettekou/ghc,snoyberg/ghc,ezyang/ghc,acowley/ghc,siddhanathan/ghc,gridaphobe/ghc,elieux/ghc,ghc-android/ghc,siddhanathan/ghc,oldmanmike/ghc,GaloisInc/halvm-ghc,GaloisInc/halvm-ghc,siddhanathan/ghc,elieux/ghc,mcschroeder/ghc,anton-dessiatov/ghc,da-x/ghc,mettekou/ghc,vikraman/ghc,mettekou/ghc,ghc-android/ghc,mettekou/ghc,mfine/ghc,wxwxwwxxx/ghc,AlexanderPankiv/ghc,snoyberg/ghc,sgillespie/ghc,tjakway/ghcjvm,sgillespie/ghc,wxwxwwxxx/ghc,vikraman/ghc,nushio3/ghc,ghc-android/ghc,gridaphobe/ghc,da-x/ghc,sdiehl/ghc,sgillespie/ghc,ezyang/ghc,mfine/ghc,snoyberg/ghc,acowley/ghc,acowley/ghc,vikraman/ghc,sdiehl/ghc,TomMD/ghc,nushio3/ghc,vTurbine/ghc,ml9951/ghc,wxwxwwxxx/ghc,GaloisInc/halvm-ghc,mfine/ghc,nkaretnikov/ghc,anton-dessiatov/ghc,TomMD/ghc,mfine/ghc,AlexanderPankiv/ghc,elieux/ghc,tjakway/ghcjvm,urbanslug/ghc,mcschroeder/ghc,TomMD/ghc,ezyang/ghc,snoyberg/ghc,tjakway/ghcjvm,anton-dessiatov/ghc,sdiehl/ghc,gridaphobe/ghc,vikraman/ghc,nkaretnikov/ghc,mfine/ghc,TomMD/ghc,vTurbine/ghc,ezyang/ghc,oldmanmike/ghc,da-x/ghc,shlevy/ghc,nkaretnikov/ghc,shlevy/ghc,gridaphobe/ghc,vTurbine/ghc