Guard against uninitialized pointers in io.Copy to fix #2416
Guard against uninitialized pointers in io.Copy to fix #2416

tsmolka/packer,napramirez/packer,mayflower/packer,atlassian/packer,threatstream/packer,taliesins/packer,boumenot/packer,sean-/packer,evertrue/packer,life360/packer,grange74/packer,beni55/packer,smaato/packer,smaato/packer,routelastresort/packer,mohae/packer,higebu/packer,p1-nico/packer,LinusU/packer,ttaylor249/packer,rickard-von-essen/packer,mayflower/packer,kpettijohn/packer,monkeylittleinc/packer,mayflower/packer,esemplare/packer,youhong316/packer,BayanGroup/packer,evertrue/packer,taliesins/packer,napramirez/packer,pecigonzalo/packer,sean-/packer,grange74/packer,mansunkuo/packer,AlphaStaxLLC/packer,jen20/packer,trumant/packer,aneeshusa/packer,lantrix/packer,bryson/packer,manicai/packer,pvandervelde/packer,yoctocloud/packer,avldya/packer,tas50/packer,trumant/packer,yonglehou/packer,rodm/packer,pecigonzalo/packer,tas50/packer,arizvisa/packer,markpeek/packer,mkuzmin/packer,sequenceiq/packer,jimmythedog/packer,Akasurde/packer,zhuzhih2017/packer,yoctocloud/packer,sequenceiq/packer,smaato/packer,ChrisLundquist/packer,mkuzmin/packer,jasonchaffee/packer,gildas/packer-hyperv,mafrosis/packer,AlphaStaxLLC/packer,mefellows/packer,mwhooker/packer,vtolstov/packer,ttaylor249/packer,jmptrader/packer,oliviertremblay/packer,bhcleek/packer,atlassian/packer,ephemeralsnow/packer,threatstream/packer,hazelesque/packer,markpeek/packer,mefellows/packer,hazelesque/packer,mitchellh/packer,kpettijohn/packer,hasJackb/packer,vtolstov/packer,gbarberi/packer,DualSpark/packer,bradparks/packer__create_vm_for_aws_docker_vagrant_etc,routelastresort/packer,hasJackb/packer,feateds/packer,paulmey/packer,monkeylittleinc/packer,pvanbuijtene/packer,bryson/packer,Silver90/packer,marklap/packer,jarl-dk/packer,mansunkuo/packer,paulmey/packer,Cbeck527/packer,legal90/packer,Silver90/packer,paulmey/packer,bradparks/packer__create_vm_for_aws_docker_vagrant_etc,jasonchaffee/packer,pearkes/packer,dayglojesus/packer,lantrix/packer,noplay/packer,rrva/packer,threatstream/packer,dev-head/packer,ricardclau/packer,KohlsTechnology/packer,mgk/packer,timsutton/packer,rickard-von-essen/packer,jsternberg/packer,justincampbell/packer,ricardclau/packer,jsternberg/packer,boumenot/packer,rnaveiras/packer,c22/packer,hashicorp/packer,zhuzhih2017/packer,sansb/packer,marklap/packer,bhcleek/packer,p1-nico/packer,atlassian/packer,paulmey/packer,sansb/packer,eranchetz/packer,styro/packer,rnaveiras/packer,life360/packer,fnoeding/packer,mohae/packer,DualSpark/packer,samdunne/packer,ldejager/packer,mvanholsteijn/packer,markpeek/packer,tb3088/packer,bradparks/packer__create_vm_for_aws_docker_vagrant_etc,esemplare/packer,mafrosis/packer,jonathankarsh/packer,icnocop/packer,markpeek/packer,jonathankarsh/packer,danschaffer/packer,arizvisa/packer,KohlsTechnology/packer,gbarberi/packer,dantran/packer,tb3088/packer,jen20/packer,evertrue/packer,threatstream/packer,tas50/packer,smaato/packer,timsutton/packer,mwhooker/packer,Sheile/packer,eranchetz/packer,pieter-lazzaro/packer,quantang/packer,bensojona/packer,evertrue/packer,quantang/packer,bhcleek/packer,israelshirk/packer,tsmolka/packer,rrva/packer,oliviertremblay/packer,dieu/packer,taliesins/packer,visioncritical/packer,life360/packer,sneal/packer,mwhooker/packer,ChrisLundquist/packer,atlassian/packer,mkuzmin/packer,yonglehou/packer,tsmolka/packer,samdunne/packer,stagrlee/packer,kgrvamsi/packer,ephemeralsnow/packer,ephemeralsnow/packer,mvanholsteijn/packer,AlphaStaxLLC/packer,higebu/packer,arizvisa/packer,c22/packer,danschaffer/packer,routelastresort/packer,styro/packer,pecigonzalo/packer,bryson/packer,dantran/packer,gildas/packer-hyperv,esemplare/packer,yoctocloud/packer,legal90/packer,pvandervelde/packer,pvandervelde/packer,avldya/packer,mkuzmin/packer,boumenot/packer,Xiol/packer,jamesleech/packer,dev-head/packer,mansunkuo/packer,zeliff/packer,jae2/packer,arizvisa/packer,kgrvamsi/packer,sobrinho/packer,jarl-dk/packer,bryson/packer,KohlsTechnology/packer,ttaylor249/packer,bryson/packer,quantang/packer,dieu/packer,jean/packer,dayglojesus/packer,boumenot/packer,sequenceiq/packer,p1-nico/packer,markpeek/packer,BayanGroup/packer,fnoeding/packer,ephemeralsnow/packer,grange74/packer,dev-head/packer,ldejager/packer,KFishner/packer,grubernaut/packer,Cbeck527/packer,Xiol/packer,quantang/packer,israelshirk/packer,sobrinho/packer,dayglojesus/packer,marc-ta/packer,jgkim/packer,atlassian/packer,Sheile/packer,mansunkuo/packer,mayflower/packer,mgk/packer,grubernaut/packer,jae2/packer,jimmythedog/packer,dave2/packer,paulvollmer/packer,jgkim/packer,mitchellh/packer,israelshirk/packer,aneeshusa/packer,styro/packer,mayflower/packer,mansunkuo/packer,mohae/packer,mafrosis/packer,tas50/packer,justincampbell/packer,visioncritical/packer,mohae/packer,jsternberg/packer,styro/packer,monsterzz/packer,esemplare/packer,p1-nico/packer,hashicorp/packer,youhong316/packer,paulmey/packer,c22/packer,sansb/packer,Sheile/packer,fnoeding/packer,dayglojesus/packer,ephemeralsnow/packer,pvandervelde/packer,icnocop/packer,Xiol/packer,atlassian/packer,visioncritical/packer,tsmol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