Fix a bad assumption
Fix a bad assumption

If the empty variable happens to be sorted to the end of the list then TrimSpace()
would remove it. Instead only strip the single trailing newline.

Signed-off-by: Daniel Nephin <6347c07ae509164cffebfb1e2a0d6ed64958db19@docker.com>

nawawi/docker,justincormack/docker,miminar/docker,cyphar/docker,PatrickLang/moby,rhatdan/docker,mahak/docker,jameszhan/docker,dims/docker,gnailuy/docker,thaJeztah/docker,justincormack/docker,thaJeztah/docker,fcrisciani/docker,srust/docker,cyphar/docker,nawawi/docker,gnailuy/docker,tophj-ibm/docker,justincormack/docker,KarthikNayak/docker,kojiromike/docker,laijs/docker,moul/docker,nalind/docker,bearstech/moby,jwhonce/docker,AkihiroSuda/docker,thaJeztah/docker,paralin/docker,PatrickLang/moby,madhanrm/docker,AkihiroSuda/docker,nawawi/docker,nalind/docker,konstruktoid/docker-upstream,madhanrm/docker,yummypeng/docker,danyalKhaliq10p/moby,dccurtis/docker,pradipd/moby,miminar/docker,maxamillion/docker,srust/docker,kolyshkin/moby,scotttlin/docker,jvanz/docker,dmcgowan/docker,mikebrow/docker,docker/docker,yosifkit/docker,dsheets/moby,Ramzec/docker,ibuildthecloud/docker,KarthikNayak/docker,whuwxl/docker,tmp6154/docker,rancher/docker,ripcurld0/moby,cyphar/docker,konstruktoid/docker-upstream,jthelin/docker,laijs/moby,ibuildthecloud/docker,laijs/docker,mixja/docker,jwhonce/docker,bearstech/moby,yummypeng/docker,Ramzec/docker,cpuguy83/docker,ibuildthecloud/docker,djs55/docker,ibuildthecloud/docker,rhatdan/docker,maxamillion/docker,rancher/docker,x1022as/docker,ibuildthecloud/docker,moby/moby,moby/moby,fcrisciani/docker,mixja/docker,johnstep/moby-moby,KingEmet/docker,mahak/docker,noironetworks/docker,AkihiroSuda/docker,jimjag/docker,x1022as/docker,rremer/moby,jimjag/docker,jlhawn/docker,yosifkit/docker,moul/docker,trebonian/docker,crosbymichael/docker,miminar/docker,paralin/docker,djs55/docker,mikebrow/docker,yongtang/docker,jimjag/docker,dsheets/moby,allencloud/docker,docker/docker,unclejack/docker,rremer/moby,whuwxl/docker,moul/docker,dims/docker,noironetworks/docker,mixja/docker,estesp/docker,kolyshkin/moby,vdemeester/docker,fcrisciani/docker,johnstep/moby-moby,cpuguy83/docker,danyalKhaliq10p/moby,dmcgowan/docker,shishir-a412ed/docker,whuwxl/docker,sterchelen/docker,raja-sami-10p/moby,madhanrm/docker,bearstech/moby,SvenDowideit/docker,laijs/moby,YuPengZTE/docker,KarthikNayak/docker,ripcurld0/moby,scotttlin/docker,trebonian/docker,tmp6154/docker,vdemeester/docker,nalind/docker,pramodhkp/moby,rremer/moby,maxamillion/docker,raja-sami-10p/moby,rhatdan/docker,shishir-a412ed/docker,ndeloof/docker,pradipd/moby,duglin/docker,Ramzec/docker,dims/docker,unclejack/docker,tophj-ibm/docker,djs55/docker,KingEmet/docker,jlhawn/docker,jthelin/docker,raja-sami-10p/moby,jvanz/docker,kolyshkin/moby,rancher/docker,konstruktoid/docker-upstream,scotttlin/docker,pradipd/moby,crosbymichael/docker,jameszhan/docker,srust/docker,PatrickLang/moby,vdemeester/docker,tonistiigi/docker,YuPengZTE/docker,tophj-ibm/moby,tmp6154/docker,sterchelen/docker,thaJeztah/docker,tophj-ibm/docker,tophj-ibm/moby,cpuguy83/docker,yongtang/docker,tklauser/docker,paralin/docker,laijs/moby,allencloud/docker,mahak/docker,ripcurld0/moby,tonistiigi/docker,gnailuy/docker,danyalKhaliq10p/moby,SvenDowideit/docker,duglin/docker,yosifkit/docker,johnstep/moby-moby,laijs/docker,bearstech/moby,estesp/docker,konstruktoid/docker-1,konstruktoid/docker-1,shishir-a412ed/docker,tonistiigi/docker,unclejack/docker,ndeloof/docker,paralin/docker,AkihiroSuda/docker,SvenDowideit/docker,jameszhan/docker,moby/moby,kojiromike/docker,tklauser/docker,jimjag/docker,dccurtis/docker,gnailuy/docker,cpuguy83/docker,x1022as/docker,trebonian/docker,nawawi/docker,flavio/docker,KingEmet/docker,mikebrow/docker,jlhawn/docker,yosifkit/docker,tklauser/docker,kolyshkin/docker,Ramzec/docker,pramodhkp/moby,jwhonce/docker,yongtang/docker,Mokolea/docker,jvanz/docker,mahak/docker,pramodhkp/moby,dmcgowan/docker,konstruktoid/docker-upstream,sterchelen/docker,yummypeng/docker,dsheets/moby,docker/docker,flavio/docker,konstruktoid/docker-1,estesp/docker,duglin/docker,nalind/docker,tophj-ibm/moby,moul/docker,ndeloof/docker,YuPengZTE/docker,trebonian/docker,flavio/docker,moby/moby,Mokolea/docker,kojiromike/docker,kolyshkin/docker,noironetworks/docker,dccurtis/docker,crosbymichael/docker,Mokolea/docker,flavio/docker,Mokolea/docker,allencloud/docker