daemon/top_unix_test: cleanup test cases and use subtests
daemon/top_unix_test: cleanup test cases and use subtests

The t.Log() caused some unneeded noise; changing these
tests to us subtests instead, so that we can track them
more easily.

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

jvanz/docker,djs55/docker,pradipd/moby,moby/moby,moby/moby,estesp/docker,Ramzec/docker,Mokolea/docker,trebonian/docker,thaJeztah/docker,ibuildthecloud/docker,moul/docker,mahak/docker,paralin/docker,ibuildthecloud/docker,jvanz/docker,Ramzec/docker,jameszhan/docker,estesp/docker,moul/docker,flavio/docker,SvenDowideit/docker,Ramzec/docker,vdemeester/docker,nalind/docker,ibuildthecloud/docker,Ramzec/docker,jvanz/docker,yosifkit/docker,mahak/docker,trebonian/docker,trebonian/docker,kojiromike/docker,bearstech/moby,yosifkit/docker,konstruktoid/docker-upstream,gnailuy/docker,SvenDowideit/docker,flavio/docker,SvenDowideit/docker,docker/docker,nawawi/docker,konstruktoid/docker-upstream,kojiromike/docker,moul/docker,pradipd/moby,ibuildthecloud/docker,justincormack/docker,nalind/docker,moby/moby,jimjag/docker,kojiromike/docker,bearstech/moby,jthelin/docker,konstruktoid/docker-upstream,bearstech/moby,mahak/docker,jimjag/docker,gnailuy/docker,gnailuy/docker,paralin/docker,estesp/docker,docker/docker,gnailuy/docker,cpuguy83/docker,jthelin/docker,ibuildthecloud/docker,AkihiroSuda/docker,nalind/docker,paralin/docker,dims/docker,nawawi/docker,moby/moby,thaJeztah/docker,nawawi/docker,AkihiroSuda/docker,djs55/docker,pradipd/moby,justincormack/docker,nawawi/docker,flavio/docker,moul/docker,cpuguy83/docker,djs55/docker,konstruktoid/docker-1,yosifkit/docker,justincormack/docker,konstruktoid/docker-1,yosifkit/docker,dims/docker,dims/docker,jimjag/docker,mahak/docker,Mokolea/docker,paralin/docker,thaJeztah/docker,nalind/docker,thaJeztah/docker,Mokolea/docker,docker/docker,bearstech/moby,cpuguy83/docker,AkihiroSuda/docker,konstruktoid/docker-upstream,trebonian/docker,konstruktoid/docker-1,AkihiroSuda/docker,jimjag/docker,jameszhan/docker,vdemeester/docker,vdemeester/docker,Mokolea/docker,flavio/docker,jameszhan/docker,cpuguy83/docker