Fix another sys.platform check
Fix another sys.platform check

artemutin/beets,lengtche/beets,shamangeorge/beets,madmouser1/beets,madmouser1/beets,diego-plan9/beets,mosesfistos1/beetbox,jackwilsdon/beets,xsteadfastx/beets,xsteadfastx/beets,diego-plan9/beets,SusannaMaria/beets,jackwilsdon/beets,diego-plan9/beets,pkess/beets,jcoady9/beets,sampsyo/beets,mosesfistos1/beetbox,jcoady9/beets,madmouser1/beets,sampsyo/beets,Kraymer/beets,artemutin/beets,xsteadfastx/beets,sampsyo/beets,SusannaMaria/beets,pkess/beets,xsteadfastx/beets,beetbox/beets,mosesfistos1/beetbox,MyTunesFreeMusic/privacy-policy,shamangeorge/beets,jackwilsdon/beets,artemutin/beets,lengtche/beets,madmouser1/beets,lengtche/beets,MyTunesFreeMusic/privacy-policy,beetbox/beets,jcoady9/beets,ibmibmibm/beets,Kraymer/beets,shamangeorge/beets,sampsyo/beets,ibmibmibm/beets,jcoady9/beets,MyTunesFreeMusic/privacy-policy,beetbox/beets,pkess/beets,beetbox/beets,lengtche/beets,shamangeorge/beets,SusannaMaria/beets,SusannaMaria/beets,jackwilsdon/beets,Kraymer/beets,ibmibmibm/beets,pkess/beets,artemutin/beets,MyTunesFreeMusic/privacy-policy,Kraymer/beets,mosesfistos1/beetbox,ibmibmibm/beets,diego-plan9/beets