Fix the package script
Fix the package script

The error operations need to distinguish between adding errors to the
known list and printing them out to the console. This avoids an
exception foreaching over the error list at the end of the script
(previously it was adding them while iterating).

paulvanbrenk/roslyn,AlekseyTs/roslyn,genlu/roslyn,OmarTawfik/roslyn,OmarTawfik/roslyn,Hosch250/roslyn,gafter/roslyn,davkean/roslyn,CaptainHayashi/roslyn,jcouv/roslyn,xasx/roslyn,DustinCampbell/roslyn,srivatsn/roslyn,bkoelman/roslyn,gafter/roslyn,tannergooding/roslyn,jmarolf/roslyn,ErikSchierboom/roslyn,shyamnamboodiripad/roslyn,MichalStrehovsky/roslyn,diryboy/roslyn,DustinCampbell/roslyn,Giftednewt/roslyn,diryboy/roslyn,gafter/roslyn,robinsedlaczek/roslyn,mgoertz-msft/roslyn,weltkante/roslyn,tannergooding/roslyn,genlu/roslyn,swaroop-sridhar/roslyn,eriawan/roslyn,stephentoub/roslyn,khyperia/roslyn,reaction1989/roslyn,AlekseyTs/roslyn,nguerrera/roslyn,jasonmalinowski/roslyn,brettfo/roslyn,wvdd007/roslyn,jkotas/roslyn,jasonmalinowski/roslyn,MichalStrehovsky/roslyn,tmeschter/roslyn,ErikSchierboom/roslyn,Hosch250/roslyn,weltkante/roslyn,pdelvo/roslyn,tvand7093/roslyn,KirillOsenkov/roslyn,jkotas/roslyn,jamesqo/roslyn,KirillOsenkov/roslyn,mmitche/roslyn,dpoeschl/roslyn,tmat/roslyn,reaction1989/roslyn,AlekseyTs/roslyn,KirillOsenkov/roslyn,davkean/roslyn,mgoertz-msft/roslyn,heejaechang/roslyn,tvand7093/roslyn,Giftednewt/roslyn,sharwell/roslyn,lorcanmooney/roslyn,TyOverby/roslyn,cston/roslyn,aelij/roslyn,kelltrick/roslyn,TyOverby/roslyn,paulvanbrenk/roslyn,stephentoub/roslyn,agocke/roslyn,mmitche/roslyn,jasonmalinowski/roslyn,srivatsn/roslyn,MattWindsor91/roslyn,orthoxerox/roslyn,CyrusNajmabadi/roslyn,MichalStrehovsky/roslyn,eriawan/roslyn,jamesqo/roslyn,Giftednewt/roslyn,orthoxerox/roslyn,brettfo/roslyn,paulvanbrenk/roslyn,dpoeschl/roslyn,eriawan/roslyn,CyrusNajmabadi/roslyn,bartdesmet/roslyn,bkoelman/roslyn,AnthonyDGreen/roslyn,dpoeschl/roslyn,aelij/roslyn,MattWindsor91/roslyn,panopticoncentral/roslyn,jcouv/roslyn,VSadov/roslyn,agocke/roslyn,tmeschter/roslyn,pdelvo/roslyn,nguerrera/roslyn,robinsedlaczek/roslyn,mavasani/roslyn,physhi/roslyn,AnthonyDGreen/roslyn,ErikSchierboom/roslyn,jamesqo/roslyn,VSadov/roslyn,CaptainHayashi/roslyn,kelltrick/roslyn,TyOverby/roslyn,mmitche/roslyn,cston/roslyn,shyamnamboodiripad/roslyn,tmeschter/roslyn,genlu/roslyn,diryboy/roslyn,bartdesmet/roslyn,davkean/roslyn,brettfo/roslyn,CaptainHayashi/roslyn,wvdd007/roslyn,KevinRansom/roslyn,dotnet/roslyn,tmat/roslyn,AdamSpeight2008/roslyn-AdamSpeight2008,AmadeusW/roslyn,pdelvo/roslyn,KevinRansom/roslyn,tvand7093/roslyn,AdamSpeight2008/roslyn-AdamSpeight2008,swaroop-sridhar/roslyn,xasx/roslyn,srivatsn/roslyn,bartdesmet/roslyn,jkotas/roslyn,tmat/roslyn,AmadeusW/roslyn,lorcanmooney/roslyn,CyrusNajmabadi/roslyn,khyperia/roslyn,dotnet/roslyn,khyperia/roslyn,tannergooding/roslyn,KevinRansom/roslyn,MattWindsor91/roslyn,lorcanmooney/roslyn,swaroop-sridhar/roslyn,abock/roslyn,jmarolf/roslyn,abock/roslyn,wvdd007/roslyn,sharwell/roslyn,aelij/roslyn,mattscheffer/roslyn,AdamSpeight2008/roslyn-AdamSpeight2008,mavasani/roslyn,robinsedlaczek/roslyn,AmadeusW/roslyn,MattWindsor91/roslyn,mgoertz-msft/roslyn,mavasani/roslyn,stephentoub/roslyn,cston/roslyn,heejaechang/roslyn,abock/roslyn,panopticoncentral/roslyn,mattscheffer/roslyn,heejaechang/roslyn,Hosch250/roslyn,weltkante/roslyn,shyamnamboodiripad/roslyn,kelltrick/roslyn,orthoxerox/roslyn,jcouv/roslyn,bkoelman/roslyn,xasx/roslyn,dotnet/roslyn,VSadov/roslyn,mattscheffer/roslyn,physhi/roslyn,sharwell/roslyn,OmarTawfik/roslyn,reaction1989/roslyn,nguerrera/roslyn,jmarolf/roslyn,DustinCampbell/roslyn,AnthonyDGreen/roslyn,physhi/roslyn,agocke/roslyn,panopticoncentral/roslyn