Avoid running empty for loops; fixes trac #3683 Solaris's sh gives     /bin/sh: syntax error at line 1: `;' unexpected when faced with something like     for x in ; do ...; done Patch from Christian Maeder.
Avoid running empty for loops; fixes trac #3683
Solaris's sh gives
    /bin/sh: syntax error at line 1: `;' unexpected
when faced with something like
    for x in ; do ...; done
Patch from Christian Maeder.

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