Fix a bug in 'sdist --zip' that prevented it from working.
Fix a bug in 'sdist --zip' that prevented it from working.

triplepointfive/cabal,themoritz/cabal,randen/cabal,randen/cabal,themoritz/cabal,Peaker/cabal,plow-technologies/cabal,ian-ross/cabal,anton-dessiatov/cabal,triplepointfive/cabal,enolan/cabal,corngood/cabal,ghc-android/cabal,bennofs/cabal,kosmikus/cabal,trskop/cabal,valderman/cabal,beni55/cabal,fpco/cabal,thoughtpolice/cabal,typelead/epm,mightybyte/cabal,sopvop/cabal,christiaanb/cabal,corngood/cabal,fugyk/cabal,plumlife/cabal,enolan/cabal,edsko/cabal,rimmington/cabal,headprogrammingczar/cabal,gbaz/cabal,seereason/cabal,valderman/cabal,themoritz/cabal,Peaker/cabal,eric-stanley/cabal,fpco/cabal,anton-dessiatov/cabal,gridaphobe/cabal,plow-technologies/cabal,mightybyte/cabal,seereason/cabal,gbaz/cabal,Helkafen/cabal,garetxe/cabal,fugyk/cabal,mmakowski/cabal,thomie/cabal,martinvlk/cabal,trskop/cabal,Helkafen/cabal,edsko/cabal,ian-ross/cabal,bennofs/cabal,lukexi/cabal,typelead/epm,mydaum/cabal,rimmington/cabal,kosmikus/cabal,sopvop/cabal,gridaphobe/cabal,Heather/cabal,thoughtpolice/cabal,eric-stanley/cabal,Heather/cabal,thomie/cabal,sopvop/cabal,kolmodin/cabal,garetxe/cabal,headprogrammingczar/cabal,x-y-z/cabal,mydaum/cabal,christiaanb/cabal,x-y-z/cabal,mmakowski/cabal,lukexi/cabal,ghc-android/cabal,beni55/cabal,martinvlk/cabal,kolmodin/cabal,plumlife/cabal