communicator/ssh: bind variable value to closure
communicator/ssh: bind variable value to closure

Fixes the following vet report:

communicator/ssh/communicator_test.go:88: range variable newChannel captured by func literal

jimmythedog/packer,monkeylittleinc/packer,jarl-dk/packer,dave2/packer,rnaveiras/packer,higebu/packer,mgk/packer,oliviertremblay/packer,icnocop/packer,dev-head/packer,dave2/packer,kpettijohn/packer,pvandervelde/packer,trumant/packer,monkeylittleinc/packer,timsutton/packer,jimmythedog/packer,grubernaut/packer,kgrvamsi/packer,timsutton/packer,BayanGroup/packer,ttaylor249/packer,uber/packer,dantran/packer,sean-/packer,sneal/packer,jimmythedog/packer,atlassian/packer,boumenot/packer,sansb/packer,mefellows/packer,kpettijohn/packer,tas50/packer,dragon788/packer,lantrix/packer,life360/packer,pecigonzalo/packer,jszwedko/packer,grange74/packer,pvandervelde/packer,monsterzz/packer,ChrisLundquist/packer,trumant/packer,dave2/packer,bensojona/packer,tomwilkie/packer,noplay/packer,rickard-von-essen/packer,taliesins/packer,zhuzhih2017/packer,samdunne/packer,oliviertremblay/packer,gbarberi/packer,rnaveiras/packer,KFishner/packer,p1-nico/packer,routelastresort/packer,jgkim/packer,jmptrader/packer,zeliff/packer,rnaveiras/packer,paulmey/packer,shaunduncan/packer,sean-/packer,tb3088/packer,hazelesque/packer,atlassian/packer,sequenceiq/packer,mafrosis/packer,hasJackb/packer,BayanGroup/packer,tas50/packer,kpettijohn/packer,leroux/packer,ChrisLundquist/packer,rnaveiras/packer,jean/packer,life360/packer,Akasurde/packer,DualSpark/packer,jen20/packer,dieu/packer,ephemeralsnow/packer,yonglehou/packer,legal90/packer,hasJackb/packer,quantang/packer,jsternberg/packer,p1-nico/packer,visioncritical/packer,bhcleek/packer,uber/packer,sgirones/packer,AlphaStaxLLC/packer,gildas/packer-hyperv,sobrinho/packer,gildas/packer-hyperv,hasJackb/packer,yoctocloud/packer,quantang/packer,smaato/packer,aneeshusa/packer,youhong316/packer,mitchellh/packer,sneal/packer,mayflower/packer,jonathankarsh/packer,jamesbishopp/packer,kgrvamsi/packer,mvanholsteijn/packer,ldejager/packer,bradparks/packer__create_vm_for_aws_docker_vagrant_etc,mitchellh/packer,mitchellh/packer,taliesins/packer,pvanbuijtene/packer,dieu/packer,ttaylor249/packer,jmptrader/packer,mafrosis/packer,LinusU/packer,feateds/packer,markpeek/packer,higebu/packer,mafrosis/packer,jsternberg/packer,yoctocloud/packer,zhuzhih2017/packer,btd/packer,ephemeralsnow/packer,c22/packer,Xiol/packer,mansunkuo/packer,tas50/packer,arizvisa/packer,boumenot/packer,jen20/packer,kgrvamsi/packer,masbog/packer,beni55/packer,jarl-dk/packer,btd/packer,mvanholsteijn/packer,cyberhouse/packer,fnoeding/packer,tb3088/packer,jamesbishopp/packer,arizvisa/packer,trumant/packer,markpeek/packer,p1-nico/packer,sobrinho/packer,bensojona/packer,Cbeck527/packer,dev-head/packer,tas50/packer,sobrinho/packer,icnocop/packer,marc-ta/packer,esemplare/packer,zeliff/packer,visioncritical/packer,esemplare/packer,leroux/packer,ricardclau/packer,vtolstov/packer,tracyde/packer,markpeek/packer,ChrisLundquist/packer,zhuzhih2017/packer,tsmolka/packer,BayanGroup/packer,hazelesque/packer,atlassian/packer,manicai/packer,Sheile/packer,mkuzmin/packer,monkeylittleinc/packer,mwhooker/packer,dragon788/packer,arizvisa/packer,Xiol/packer,lantrix/packer,higebu/packer,pvandervelde/packer,routelastresort/packer,ttaylor249/packer,zeliff/packer,jasonchaffee/packer,dayglojesus/packer,boumenot/packer,sansb/packer,styro/packer,orivej/packer,justincampbell/packer,sgirones/packer,shaunduncan/packer,rickard-von-essen/packer,mgk/packer,tracyde/packer,marklap/packer,tb3088/packer,timsutton/packer,paulvollmer/packer,fnoeding/packer,feateds/packer,mohae/packer,rrva/packer,oliviertremblay/packer,tracyde/packer,ricardclau/packer,jszwedko/packer,masbog/packer,routelastresort/packer,Cbeck527/packer,paulmey/packer,smaato/packer,sequenceiq/packer,zhuzhih2017/packer,taliesins/packer,mkuzmin/packer,sneal/packer,jszwedko/packer,grange74/packer,mansunkuo/packer,monkeylittleinc/packer,markpeek/packer,youhong316/packer,jsternberg/packer,arizvisa/packer,grange74/packer,esemplare/packer,avldya/packer,jszwedko/packer,dantran/packer,ldejager/packer,ttaylor249/packer,c22/packer,israelshirk/packer,noplay/packer,avldya/packer,legal90/packer,masbog/packer,rk295/packer,jen20/packer,bhcleek/packer,markpeek/packer,monsterzz/packer,dev-head/packer,hasJackb/packer,life360/packer,pieter-lazzaro/packer,paulmey/packer,israelshirk/packer,rodm/packer,visioncritical/packer,zakuro9715/packer,napramirez/packer,stagrlee/packer,jarl-dk/packer,jonathankarsh/packer,taliesins/packer,leroux/packer,mkuzmin/packer,dantran/packer,israelshirk/packer,taliesins/packer,marklap/packer,umang1912/packer,paulmey/packer,uber/packer,henrysher/packer,icnocop/packer,rk295/packer,mvanholsteijn/packer,grubernaut/packer,danschaffer/packer,jmptrader/packer,boumenot/packer,avldya/packer,napramirez/packer,mwhooker/packer,israelshirk/packer,eranchetz/packer,jamesleech/packer,sgirones/packer,orivej/packer,paulvollmer/packer,jen20/packer,Akasurde/packer,youhong316/packer,ricardclau/packer,stagrlee/packer,styro/packer,pvanbuijtene/packer,paulmey/packer,ephemeralsnow/packer,umang1912/packer,Silver90/packer,pvandervelde/packer,umang1912/pac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sojona/packer,napramirez/packer,jae2/packer,mohae/packer,lantrix/packer,jgkim/packer,rk295/packer,mafrosis/packer,tomwilkie/packer,noplay/packer,yonglehou/packer,gbarberi/packer,Xiol/packer,routelastresort/packer,burnzy/packer,bryson/packer,jasonchaffee/packer,eranchetz/packer,yoctocloud/packer,threatstream/packer,shaunduncan/packer,bryson/packer,masbog/packer,marc-ta/packer,LinusU/packer,legal90/packer,ephemeralsnow/packer,jean/packer,hashicorp/packer,sean-/packer,youhong316/packer,mayflower/packer,gildas/packer-hyperv,vtolstov/packer,fnoeding/packer,hashicorp/packer,smaato/packer,smaato/packer,KohlsTechnology/packer,taliesins/packer,tomwilkie/packer,shaunduncan/packer,mefellows/packer,pecigonzalo/packer,jmptrader/packer,c22/packer,pearkes/packer,sobrinho/packer