Remove blank line on daemon output when there are no containers to load
Remove blank line on daemon output when there are no containers to load

Its a minor thing but the daemon's output looks like this when there are
no containers to load:
```
INFO[0001] Loading containers: start.

INFO[0001] Loading containers: done.
```
That blank line (or more correctly, the \n) is unnecessary when
there are no containers to load since there is no `.` printed

Signed-off-by: Doug Davis <ff3bde741799c0eff815b83a54eda3fc494df54f@us.ibm.com>

darrenstahlmsft/docker,whuwxl/docker,nawawi/docker,diogomonica/docker,jlhawn/docker,stevvooe/docker,noironetworks/docker,konstruktoid/docker-1,johnstep/moby-moby,pradipd/moby,fcrisciani/docker,mahak/docker,naveed-jamil-tenpearls/moby,unclejack/docker,unclejack/docker,wenchma/docker,zhuguihua/docker,stevvooe/docker,q384566678/docker,sterchelen/docker,sterchelen/docker,tophj-ibm/moby,johnstep/moby-moby,mkumatag/docker,crosbymichael/docker,shhsu/docker,flavio/docker,haveatry/docker,lixiaobing1/docker,xiaods/docker,tophj-ibm/docker,tonistiigi/docker,haveatry/docker,Mokolea/docker,sarnautov/moby,gnailuy/docker,laijs/docker,diogomonica/docker,jameszhan/docker,KarthikNayak/docker,portworx/docker,mahak/docker,jvanz/docker,ibuildthecloud/docker,yosifkit/docker,ajaymdesai/docker,dsheets/moby,liaoqingwei/docker,HuKeping/docker,yasiramin10p/moby,afein/docker,vdemeester/docker,PatrickLang/moby,brahmaroutu/docker,moby/moby,laijs/moby,moul/docker,prertik/docker,bluebreezecf/docker,HideoYamauchi/docker,ibuildthecloud/docker,eskaaren/docker,icaoweiwei/docker,nalind/docker,konstruktoid/docker-1,mikedougherty/docker,tmp6154/docker,nalind/docker,bearstech/moby,HuKeping/docker,gnailuy/docker,SvenDowideit/docker,ripcurld0/moby,kencochrane/docker,tklauser/docker,rhatdan/storage,estesp/docker,shhsu/docker,nalind/docker,brahmaroutu/docker,yummypeng/docker,projectatomic/docker,coreos/docker,Syntaxide/docker,yosifkit/docker,diogomonica/docker,mtrmac/docker,dmcgowan/docker,asbjornenge/docker,coolljt0725/docker,mstanleyjones/docker,abhinavdahiya/docker,djs55/docker,konstruktoid/docker-1,qudongfang/docker,dccurtis/docker,containers/storage,mkumatag/docker,cpuguy83/docker,konstruktoid/docker-upstream,vdemeester/docker,xiaods/docker,srust/docker,q384566678/docker,yp-engineering/docker,catinthesky/docker,xuxinkun/docker,miminar/docker,13W/docker,fcrisciani/docker,jimjag/docker,alfred-landrum/docker,mikebrow/docker,Mokolea/docker,13W/docker,rancher/docker,yp-engineering/docker,coreos/docker,tmp6154/docker,sdurrheimer/docker,dims/docker,Ramzec/docker,harche/docker,jimjag/docker,allencloud/docker,konstruktoid/docker-upstream,yasiramin10p/moby,rhatdan/docker,estesp/docker,bluebreezecf/docker,pramodhkp/moby,portworx/docker,cpuguy83/docker,allencloud/docker,alfred-landrum/docker,JMesser81/docker,tophj-ibm/moby,djs55/docker,AkihiroSuda/docker,mixja/docker,ffoysal/docker,mikebrow/docker,laijs/docker,thtanaka/docker,x1022as/docker,mahak/docker,laijs/moby,rremer/moby,KarthikNayak/docker,jlhawn/docker,konstruktoid/docker-upstream,dims/docker,konstruktoid/docker-upstream,jthelin/docker,afein/docker,projectatomic/docker,abhinavdahiya/docker,kolyshkin/moby,yongtang/docker,kolyshkin/docker,maxamillion/docker,sdurrheimer/docker,justyntemme/docker,tophj-ibm/docker,resin-io/docker,cyphar/docker,kojiromike/docker,brahmaroutu/docker,michael-holzheu/docker,imkin/moby,dmcgowan/docker,jlhawn/docker,michelvocks/docker,mstanleyjones/docker,ColinHebert/docker,thaJeztah/docker,13W/docker,icaoweiwei/docker,dnephin/docker,HideoYamauchi/docker,darrenstahlmsft/docker,jlebon/docker,srust/docker,vdemeester/docker,thaJeztah/docker,noxiouz/docker,stevvooe/docker,nawawi/docker,endophage/docker,tklauser/docker,tianon/docker,twaugh/docker,tonistiigi/docker,jlebon/docker,moypray/docker,kolyshkin/docker,tagomoris/docker,q384566678/docker,erikstmartin/docker,pramodhkp/moby,splunk/docker,wenchma/docker,bonczj/moby-json-file-logger,scotttlin/docker,13W/docker,darrenstahlmsft/moby,mtanlee/docker,erikh/docker,yummypeng/docker,lixiaobing1/docker,PatrickLang/moby,rhatdan/storage,danyalKhaliq10p/moby,mtesselH/docker,jlebon/docker,imkin/moby,kencochrane/docker,harche/docker,cloudflare/docker,ajaymdesai/docker,ffoysal/docker,lixiaobing1/docker,kolyshkin/moby,kojiromike/docker,shishir-a412ed/docker,erikh/docker,dperny/docker,moby/moby,erikstmartin/docker,ibuildthecloud/docker,dccurtis/docker,scotttlin/docker,AkihiroSuda/docker,ibuildthecloud/docker,dims/docker,kencochrane/docker,moby/moby,mikedougherty/docker,sterchelen/docker,paralin/docker,cyphar/docker,ndeloof/docker,yosifkit/docker,SvenDowideit/docker,eskaaren/docker,michelvocks/docker,msabansal/docker,Syntaxide/docker,xiekeyang/docker,rancher/docker,whuwxl/docker,dsau/docker,catinthesky/docker,raja-sami-10p/moby,fcrisciani/docker,prertik/docker,trebonian/docker,amatsus/docker,asbjornenge/docker,resin-io/docker,sfsmithcha/docker,justyntemme/docker,nalind/docker,nawawi/docker,x1022as/docker,kunalkushwaha/docker,HideoYamauchi/docker,madhanrm/docker,xuxinkun/docker,jimjag/docker,dmcgowan/docker,alfred-landrum/docker,x1022as/docker,jhorwit2/docker,thaJeztah/docker,pradipd/moby,naveed-jamil-tenpearls/moby,splunk/docker,mikedougherty/docker,ffoysal/docker,yongtang/docker,ripcurld0/moby,cpuguy83/docker,AkihiroSuda/docker,jwhonce/docker,duglin/docker,mike1729/docker,justincormack/docker,thaJeztah/docker,xuxinkun/docker,xiekeyang/docker,raja-sami-10p/moby,mtanlee/docker,mtesselH/docker,cpuguy83/docker,coolljt0725/docker,icaoweiwei/docker,dnephin/docker,wenchma/docker,YuPengZTE/docker,qudongfang/docker,HuKeping/docker,erikh/docker,srust/docker,raja-sami-10p/moby,KingEmet/docker,endophage/docker,miminar/docker,mohmost12/docker,danyalKhaliq10p/moby,crosbymichael/docker,dnephin/docker,sarnautov/moby,dsheets/moby,justyntemme/docker,mtesselH/docker,nawawi/docker,estesp/docker,twaugh/docker,laijs/docker,whuwxl/docker,crosbymichael/docker,Ramzec/docker,mohmost12/docker,dgageot/docker,docker/docker,moul/docker,mkumatag/docker,tonistiigi/docker,asbjornenge/docker,hqhq/moby,trebonian/docker,moypray/docker,gjaskiewicz/moby,jimjag/docker,kunalkushwaha/docker,moul/docker,dongjoon-hyun/docker,qudongfang/docker,afein/docker,bonczj/moby-json-file-logger,lixiaobing10051267/docker,containers/storage,ColinHebert/docker,KarthikNayak/docker,miminar/docker,Ramzec/docker,mtrmac/docker,jvanz/docker,ndeloof/docker,johnstep/moby-moby,sdurrheimer/docker,jameszhan/docker,cloudflare/docker,akira-baruah/docker,endophage/docker,bluebreezecf/docker,jwhonce/docker,eskaaren/docker,charleszheng44/moby,michael-holzheu/docker,mixja/docker,thtanaka/docker,coreos/docker,YuPengZTE/docker,charleszheng44/moby,mstanleyjones/docker,PatrickLang/moby,michael-holzheu/docker,yp-engineering/docker,gschaetz/moby,darrenstahlmsft/moby,shishir-a412ed/docker,danyalKhaliq10p/moby,kunalkushwaha/docker,madhanrm/docker,containers/storage,noxiouz/docker,gjaskiewicz/moby,rremer/moby,kojiromike/docker,dgageot/docker,darrenstahlmsft/docker,moby/moby,13W/docker,maxamillion/docker,projectatomic/docker,cloudflare/docker,coolljt0725/docker,zhuguihua/docker,jvanz/docker,sfsmithcha/docker,harche/docker,erikstmartin/docker,POLJM242/docker,amatsus/docker,xiaods/docker,rhatdan/storage,hqhq/moby,justincormack/docker,paralin/docker,naveed-jamil-tenpearls/moby,jhorwit2/docker,mahak/docker,yummypeng/docker,JMesser81/docker,bearstech/moby,KingEmet/docker,moul/docker,jhorwit2/docker,gjaskiewicz/moby,shishir-a412ed/docker,cyphar/docker,yasiramin10p/moby,mike1729/docker,docker/docker,rhatdan/docker,AkihiroSuda/docker,portworx/docker,lixiaobing10051267/docker,hypriot/docker,bonczj/moby-json-file-logger,sarnautov/moby,charleszheng44/moby,rremer/moby,noironetworks/docker,unclejack/docker,laijs/moby,KingEmet/docker,Ramzec/docker,Mokolea/docker,jameszhan/docker,ColinHebert/docker,JMesser81/docker,duglin/docker,Mokolea/docker,msabansal/docker,dongjoon-hyun/docker,tianon/docker,bearstech/moby,ibuildthecloud/docker,yosifkit/docker,hypriot/docker,catinthesky/docker,trebonian/docker,tklauser/docker,justincormack/docker,xiekeyang/docker,dsau/docker,tophj-ibm/moby,haveatry/docker,dperny/docker,abhinavdahiya/docker,yongtang/docker,imkin/moby,moypray/docker,docker/docker,ndeloof/docker,trebonian/docker,akira-baruah/docker,flavio/docker,tophj-ibm/docker,jwhonce/docker,amatsus/docker,mike1729/docker,gschaetz/moby,djs55/docker,madhanrm/docker,ripcurld0/moby,resin-io/docker,paralin/docker,dsheets/moby,hypriot/docker,ajaymdesai/docker,gschaetz/moby,sfsmithcha/docker,michelvocks/docker,noironetworks/docker,jthelin/docker,flavio/docker,tagomoris/docker,mtrmac/docker,mikebrow/docker,shhsu/docker,gnailuy/docker,rhatdan/docker,msabansal/docker,tagomoris/docker,pramodhkp/moby,twaugh/docker,thtanaka/docker,POLJM242/docker,scotttlin/docker,pradipd/moby,hqhq/moby,liaoqingwei/docker,duglin/docker,dperny/docker,dsau/docker,lixiaobing10051267/docker,maxamillion/docker,paralin/docker,dgageot/docker,dongjoon-hyun/docker,mtanlee/docker,bearstech/moby,kolyshkin/moby,liaoqingwei/docker,gnailuy/docker,dccurtis/docker,mixja/docker,Syntaxide/docker,flavio/docker,darrenstahlmsft/moby,mohmost12/docker,allencloud/docker,SvenDowideit/docker,splunk/docker,YuPengZTE/docker,tmp6154/docker,prertik/docker,zhuguihua/docker,noxiouz/docker,rancher/docker