integration: Minor bash improvements in the helpers.
integration: Minor bash improvements in the helpers.

Signed-off-by: Andrea Luzzardi <442ffe3ffbfd024afcf0b7f8b108d05bca3aae43@gmail.com>

thaJeztah/docker.github.io,menglingwei/denverdino.github.io,bdwill/docker.github.io,everett-toews/swarm,anweiss/docker.github.io,rillig/docker.github.io,aduermael/docker.github.io,docker-zh/docker.github.io,shubheksha/docker.github.io,kyhavlov/swarm,unodba/swarm,BSWANG/swarm,phiroict/docker,alexisbellido/docker.github.io,JimGalasyn/docker.github.io,denverdino/swarm,gdevillele/docker.github.io,joeuo/docker.github.io,jimenez/swarm,shot/swarm,sanscontext/docker.github.io,danix800/docker.github.io,menglingwei/denverdino.github.io,docker-zh/docker.github.io,raoofm/swarm,liubin/swarm,therealbill/swarm,jay-lau/swarm,qianzhangxa/swarm,doronp/swarm,barais/swarm,NunoEdgarGub1/swarm,JimGalasyn/docker.github.io,docker/docker.github.io,rancher/swarm,ezrasilvera/swarm,LuisBosquez/docker.github.io,riuvshin/swarm,joaofnfernandes/docker.github.io,kunalkushwaha/swarm,ezrasilvera/SwarmACLs,jimmycmh/swarm,rutulpatel/swarm,gradywang/swarm,aidora/pisces,aduermael/docker.github.io,tranceitionalMynd/swarm,aidora/pisces,unodba/swarm,denverdino/denverdino.github.io,shin-/docker.github.io,JimGalasyn/docker.github.io,shin-/docker.github.io,jimmyxian/swarm,anweiss/docker.github.io,jzwlqx/denverdino.github.io,megamsys/swarm,vlajos/swarm,rchicoli/swarm,MHBauer/swarm,alexisbellido/docker.github.io,LuisBosquez/docker.github.io,shubheksha/docker.github.io,JimGalasyn/docker.github.io,PeoplePerHour/libswarm,everett-toews/swarm,LukasBacigal/swarm,ealang/swarm,linecheng/swarm,danix800/docker.github.io,menglingwei/denverdino.github.io,barais/swarm,Spritekin/swarm,parapsyche/swarm,gradywang/swarm,londoncalling/docker.github.io,joeuo/docker.github.io,francisbouvier/swarm,denverdino/denverdino.github.io,schmunk42/swarm,chanwit/swarm,snrism/swarm,pssahi/swarm,allencloud/swarm,morpheyesh/swarm,gdevillele/docker.github.io,BSWANG/denverdino.github.io,shahankhatch/swarm,xFragger/swarm,sfsmithcha/swarm,joaofnfernandes/docker.github.io,JimGalasyn/docker.github.io,errordeveloper/swarm,cpuguy83/swarm,gonkulator/swarm,echupriyanov/swarm,adouang/swarm,denverdino/docker.github.io,sanscontext/docker.github.io,errordeveloper/swarm,rancher/swarm,vlajos/swarm,pssahi/swarm,aduermael/docker.github.io,resouer/swarm,EderRoger/swarm,denverdino/docker.github.io,beni55/swarm-1,anweiss/docker.github.io,Spritekin/swarm,rajdeepd/swarm,riuvshin/swarm,MHBauer/swarm,raoofm/swarm,ricca742/swarm,bpradipt/swarm,joaofnfernandes/docker.github.io,denverdino/docker.github.io,Aorjoa/swarm,phiroict/docker,gdevillele/docker.github.io,bdwill/docker.github.io,shin-/docker.github.io,joeuo/docker.github.io,ejholmes/swarm,docker-zh/docker.github.io,atlassian/swarm,BSWANG/denverdino.github.io,jdamick/swarm,iaintshine/swarm,adouang/swarm,mrjana/swarm,moxiegirl/swarm,pdevine/swarm,yp-engineering/swarm,marsmensch/swarm,FreedomWangLi/swarm,menglingwei/denverdino.github.io,affo/swarm,shubheksha/docker.github.io,johnstep/docker.github.io,londoncalling/docker.github.io,gdevillele/docker.github.io,fugr/swarm,atlassian/swarm,phiroict/docker,zkcrescent/swarm,LuisBosquez/docker.github.io,anweiss/docker.github.io,ehazlett/swarm,BSWANG/denverdino.github.io,resouer/swarm,jzwlqx/denverdino.github.io,denverdino/swarm-1,danix800/docker.github.io,joaofnfernandes/docker.github.io,morpheyesh/swarm,jeffjen/swarm,tangkun75/swarm,jeffjen/swarm,jimenez/swarm,rillig/docker.github.io,shot/swarm,Aorjoa/swarm,fugr/swarm,CiaranCostello/swarm,FollowMyDev/swarm,dims/swarm,xFragger/swarm,docker/docker.github.io,therealbill/swarm,londoncalling/docker.github.io,u2mejc/swarm,rav121/swarm,thaJeztah/docker.github.io,alexisbellido/docker.github.io,rillig/docker.github.io,troy0820/docker.github.io,abronan/swarm,christophelec/swarm,deis/swarm,jdamick/swarm,moxiegirl/swarm,troy0820/docker.github.io,phiroict/docker,srikalyan/swarm,joaofnfernandes/docker.github.io,troy0820/docker.github.io,rav121/swarm,marsmensch/swarm,troy0820/docker.github.io,bsmr-docker/swarm,bdwill/docker.github.io,shahankhatch/swarm,swarm-hooks/swarm,LuisBosquez/docker.github.io,liubin/swarm,denverdino/docker.github.io,sanscontext/docker.github.io,londoncalling/docker.github.io,jimmyxian/swarm,dnephin/swarm,docker/docker.github.io,CodeNow/swarm,denverdino/denverdino.github.io,docker-zh/docker.github.io,akerbis/armhf-swarm,echupriyanov/swarm,ch3lo/swarm,linecheng/swarm,ezrasilvera/SwarmACLs,bsmr-docker/swarm,tangkun75/swarm,ch3lo/swarm,affo/swarm,jimmycmh/swarm,BSWANG/denverdino.github.io,polyverse-security/swarm,swarm-hooks/swarm,schmunk42/swarm,docker-zh/docker.github.io,yp-engineering/swarm,tranceitionalMynd/swarm,sanscontext/docker.github.io,jzwlqx/denverdino.github.io,johnstep/docker.github.io,LukasBacigal/swarm,BSWANG/swarm,mavenugo/swarm,denverdino/docker.github.io,ejholmes/swarm,rchicoli/swarm,beni55/swarm-1,thaJeztah/docker.github.io,jzwlqx/denverdino.github.io,shubheksha/docker.github.io,ealang/swarm,denverdino/denverdino.github.io,francisbouvier/swarm,alexisbellido/docker.github.io,doronp/swarm,johnstep/docker.github.io,joeuo/docker.github.io,snrism/swarm,denverdino/denverdino.github.io,pdevine/swarm,mrjana/swarm,thaJeztah/docker.github.io,thaJeztah/docker.github.io,bdwill/docker.github.io,londoncalling/docker.github.io,shin-/docker.github.io,cgvarela/swarm,EderRoger/swarm,ricca742/swarm,rillig/docker.github.io,krystism/swarm,christophelec/swarm,gdevillele/docker.github.io,CiaranCostello/swarm,mavenugo/swarm,johnstep/docker.github.io,johnstep/docker.github.io,joeuo/docker.github.io,rajdeepd/swarm,abronan/swarm,auzias/swarm,denverdino/swarm-1,docker/docker.github.io,NunoEdgarGub1/swarm,chanwit/swarm,aduermael/docker.github.io,shin-/docker.github.io,docker/docker.github.io,polyverse-security/swarm,krystism/swarm,jzwlqx/denverdino.github.io,srikalyan/swarm,gonkulator/swarm,denverdino/swarm,sanscontext/docker.github.io,jay-lau/swarm,kyhavlov/swarm,cgvarela/swarm,bdwill/docker.github.io,parapsyche/swarm,auzias/swarm,FollowMyDev/swarm,akerbis/armhf-swarm,mgoelzer/swarm,PeoplePerHour/libswarm,menglingwei/denverdino.github.io,deis/swarm,allencloud/swarm,u2mejc/swarm,phiroict/docker,iaintshine/swarm,shubheksha/docker.github.io,rutulpatel/swarm,zkcrescent/swarm,danix800/docker.github.io,dims/swarm,ezrasilvera/swarm,alexisbellido/docker.github.io,kunalkushwaha/swarm,megamsys/swarm,BSWANG/denverdino.github.io,cpuguy83/swarm,anweiss/docker.github.io,sfsmithcha/swarm,dnephin/swarm,qianzhangxa/swarm,FreedomWangLi/swarm,LuisBosquez/docker.github.io,ehazlett/swarm,CodeNow/swarm,bpradipt/swarm,mgoelzer/swarm