hack/validate/default: fix minor linting issue
hack/validate/default: fix minor linting issue

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

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