Add zsh completion for 'docker service update --hostname'
Add zsh completion for 'docker service update --hostname'

Signed-off-by: Steve Durrheimer <a2c1a055e5b399822be341b4e663de3cd05cf8f7@gmail.com>

q384566678/docker,jimjag/docker,moul/docker,tklauser/docker,coolljt0725/docker,kolyshkin/docker,darrenstahlmsft/docker,allencloud/docker,liaoqingwei/docker,amatsus/docker,pradipd/moby,lixiaobing1/docker,laijs/docker,sarnautov/moby,yummypeng/docker,PatrickLang/moby,moby/moby,mikedougherty/docker,vdemeester/docker,naveed-jamil-tenpearls/moby,rancher/docker,ndeloof/docker,ffoysal/docker,lixiaobing10051267/docker,q384566678/docker,djs55/docker,xuxinkun/docker,sarnautov/moby,justincormack/docker,kolyshkin/docker,Ramzec/docker,duglin/docker,bearstech/moby,vdemeester/docker,AkihiroSuda/docker,mixja/docker,KarthikNayak/docker,hqhq/moby,alfred-landrum/docker,mike1729/docker,jwhonce/docker,ibuildthecloud/docker,mikebrow/docker,djs55/docker,diogomonica/docker,q384566678/docker,Ramzec/docker,tophj-ibm/docker,ripcurld0/moby,ColinHebert/docker,dsheets/moby,jwhonce/docker,akira-baruah/docker,coreos/docker,dmcgowan/docker,sterchelen/docker,prertik/docker,prertik/docker,bonczj/moby-json-file-logger,erikstmartin/docker,Mokolea/docker,qudongfang/docker,noironetworks/docker,rremer/moby,shhsu/docker,amatsus/docker,coolljt0725/docker,raja-sami-10p/moby,paralin/docker,diogomonica/docker,AkihiroSuda/docker,gschaetz/moby,trebonian/docker,HideoYamauchi/docker,ibuildthecloud/docker,yummypeng/docker,cpuguy83/docker,madhanrm/docker,liaoqingwei/docker,darrenstahlmsft/moby,konstruktoid/docker-upstream,moby/moby,mikedougherty/docker,konstruktoid/docker-1,alfred-landrum/docker,nalind/docker,mkumatag/docker,shishir-a412ed/docker,yasiramin10p/moby,JMesser81/docker,miminar/docker,jvanz/docker,thaJeztah/docker,kojiromike/docker,Ramzec/docker,gjaskiewicz/moby,mkumatag/docker,thtanaka/docker,YuPengZTE/docker,srust/docker,dims/docker,liaoqingwei/docker,cpuguy83/docker,thaJeztah/docker,konstruktoid/docker-upstream,x1022as/docker,erikh/docker,bearstech/moby,yosifkit/docker,jlhawn/docker,dgageot/docker,thaJeztah/docker,YuPengZTE/docker,cpuguy83/docker,AkihiroSuda/docker,mstanleyjones/docker,docker/docker,xuxinkun/docker,docker/docker,mikebrow/docker,ibuildthecloud/docker,shishir-a412ed/docker,sdurrheimer/docker,whuwxl/docker,yosifkit/docker,tophj-ibm/moby,catinthesky/docker,mahak/docker,jimjag/docker,harche/docker,mtesselH/docker,naveed-jamil-tenpearls/moby,Ramzec/docker,alfred-landrum/docker,vdemeester/docker,resin-io/docker,tophj-ibm/moby,lixiaobing1/docker,dccurtis/docker,KingEmet/docker,kolyshkin/moby,tmp6154/docker,tophj-ibm/docker,shhsu/docker,cyphar/docker,cyphar/docker,crosbymichael/docker,sarnautov/moby,SvenDowideit/docker,michael-holzheu/docker,tianon/docker,darrenstahlmsft/moby,dgageot/docker,ffoysal/docker,dmcgowan/docker,moypray/docker,mtesselH/docker,yummypeng/docker,SvenDowideit/docker,x1022as/docker,laijs/docker,mstanleyjones/docker,ibuildthecloud/docker,hqhq/moby,trebonian/docker,gjaskiewicz/moby,laijs/moby,harche/docker,trebonian/docker,erikstmartin/docker,SvenDowideit/docker,PatrickLang/moby,dims/docker,jameszhan/docker,darrenstahlmsft/moby,tonistiigi/docker,bonczj/moby-json-file-logger,allencloud/docker,haveatry/docker,paralin/docker,POLJM242/docker,YuPengZTE/docker,scotttlin/docker,harche/docker,resin-io/docker,yongtang/docker,dsheets/moby,PatrickLang/moby,moul/docker,bearstech/moby,scotttlin/docker,jvanz/docker,imkin/moby,jimjag/docker,djs55/docker,akira-baruah/docker,whuwxl/docker,johnstep/moby-moby,moby/moby,moypray/docker,qudongfang/docker,konstruktoid/docker-upstream,prertik/docker,duglin/docker,jlhawn/docker,konstruktoid/docker-1,gnailuy/docker,gschaetz/moby,dims/docker,thtanaka/docker,tonistiigi/docker,jwhonce/docker,nawawi/docker,mixja/docker,nalind/docker,coreos/docker,rancher/docker,KarthikNayak/docker,whuwxl/docker,JMesser81/docker,danyalKhaliq10p/moby,catinthesky/docker,justincormack/docker,estesp/docker,KarthikNayak/docker,yongtang/docker,erikh/docker,rremer/moby,amatsus/docker,charleszheng44/moby,gjaskiewicz/moby,michael-holzheu/docker,Mokolea/docker,dsheets/moby,michael-holzheu/docker,gnailuy/docker,johnstep/moby-moby,tophj-ibm/docker,crosbymichael/docker,unclejack/docker,dgageot/docker,darrenstahlmsft/docker,gschaetz/moby,jthelin/docker,catinthesky/docker,imkin/moby,nalind/docker,pradipd/moby,KingEmet/docker,haveatry/docker,resin-io/docker,naveed-jamil-tenpearls/moby,Syntaxide/docker,mikedougherty/docker,jimjag/docker,laijs/docker,dperny/docker,justincormack/docker,ffoysal/docker,bonczj/moby-json-file-logger,noironetworks/docker,yosifkit/docker,konstruktoid/docker-upstream,raja-sami-10p/moby,gnailuy/docker,diogomonica/docker,pradipd/moby,moypray/docker,shhsu/docker,nawawi/docker,allencloud/docker,srust/docker,Mokolea/docker,kencochrane/docker,ripcurld0/moby,moul/docker,flavio/docker,madhanrm/docker,moby/moby,yasiramin10p/moby,Syntaxide/docker,charleszheng44/moby,sdurrheimer/docker,rhatdan/docker,moul/docker,dperny/docker,kencochrane/docker,lixiaobing1/docker,unclejack/docker,rancher/docker,JMesser81/docker,unclejack/docker,mtesselH/docker,pramodhkp/moby,jthelin/docker,tophj-ibm/moby,charleszheng44/moby,fcrisciani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