pkg/signal.TestTrap: use a subtest
pkg/signal.TestTrap: use a subtest

Signed-off-by: Sebastiaan van Stijn <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@gone.nl>

ibuildthecloud/docker,AkihiroSuda/docker,nalind/docker,tmp6154/docker,kojiromike/docker,kolyshkin/moby,rancher/docker,flavio/docker,SvenDowideit/docker,pradipd/moby,vdemeester/docker,cpuguy83/docker,thaJeztah/docker,crosbymichael/docker,Mokolea/docker,maxamillion/docker,vdemeester/docker,jimjag/docker,nawawi/docker,thaJeztah/docker,rremer/moby,crosbymichael/docker,kolyshkin/moby,docker/docker,jwhonce/docker,tmp6154/docker,jlhawn/docker,kojiromike/docker,moul/docker,gnailuy/docker,trebonian/docker,x1022as/docker,unclejack/docker,jimjag/docker,Mokolea/docker,jameszhan/docker,scotttlin/docker,estesp/docker,trebonian/docker,trebonian/docker,nawawi/docker,ibuildthecloud/docker,justincormack/docker,jvanz/docker,nawawi/docker,jlhawn/docker,jameszhan/docker,rremer/moby,mahak/docker,yongtang/docker,SvenDowideit/docker,jvanz/docker,moby/moby,jlhawn/docker,dims/docker,estesp/docker,ibuildthecloud/docker,gnailuy/docker,rremer/moby,konstruktoid/docker-upstream,mikebrow/docker,crosbymichael/docker,AkihiroSuda/docker,konstruktoid/docker-upstream,paralin/docker,pradipd/moby,moby/moby,scotttlin/docker,paralin/docker,rancher/docker,moul/docker,konstruktoid/docker-upstream,jameszhan/docker,mahak/docker,maxamillion/docker,Mokolea/docker,jwhonce/docker,bearstech/moby,Ramzec/docker,paralin/docker,AkihiroSuda/docker,AkihiroSuda/docker,moby/moby,yosifkit/docker,nalind/docker,konstruktoid/docker-1,mikebrow/docker,KarthikNayak/docker,moul/docker,moul/docker,x1022as/docker,yongtang/docker,Ramzec/docker,konstruktoid/docker-1,mikebrow/docker,justincormack/docker,thaJeztah/docker,yosifkit/docker,djs55/docker,cpuguy83/docker,SvenDowideit/docker,gnailuy/docker,maxamillion/docker,yosifkit/docker,moby/moby,pradipd/moby,Ramzec/docker,mahak/docker,rancher/docker,x1022as/docker,yongtang/docker,ibuildthecloud/docker,mahak/docker,estesp/docker,nawawi/docker,justincormack/docker,djs55/docker,kojiromike/docker,docker/docker,djs55/docker,Mokolea/docker,cpuguy83/docker,paralin/docker,yosifkit/docker,jthelin/docker,flavio/docker,docker/docker,flavio/docker,dims/docker,jimjag/docker,jthelin/docker,konstruktoid/docker-upstream,flavio/docker,nalind/docker,tmp6154/docker,jwhonce/docker,jvanz/docker,kolyshkin/moby,KarthikNayak/docker,unclejack/docker,scotttlin/docker,Ramzec/docker,gnailuy/docker,ibuildthecloud/docker,nalind/docker,cpuguy83/docker,konstruktoid/docker-1,bearstech/moby,jimjag/docker,trebonian/docker,vdemeester/docker,thaJeztah/docker,bearstech/moby,bearstech/moby,unclejack/docker,KarthikNayak/docker,dims/docker