Use egrep instead of grep -E for Solaris
Use egrep instead of grep -E for Solaris

Closes #15628

Shepard1212/elasticsearch,dongjoon-hyun/elasticsearch,episerver/elasticsearch,jchampion/elasticsearch,wangtuo/elasticsearch,maddin2016/elasticsearch,elasticdog/elasticsearch,markharwood/elasticsearch,pozhidaevak/elasticsearch,ricardocerq/elasticsearch,cwurm/elasticsearch,a2lin/elasticsearch,nezirus/elasticsearch,wangtuo/elasticsearch,girirajsharma/elasticsearch,cwurm/elasticsearch,nomoa/elasticsearch,naveenhooda2000/elasticsearch,ricardocerq/elasticsearch,liweinan0423/elasticsearch,ZTE-PaaS/elasticsearch,yanjunh/elasticsearch,ricardocerq/elasticsearch,qwerty4030/elasticsearch,girirajsharma/elasticsearch,mmaracic/elasticsearch,markharwood/elasticsearch,jimczi/elasticsearch,cwurm/elasticsearch,rlugojr/elasticsearch,Helen-Zhao/elasticsearch,obourgain/elasticsearch,mohit/elasticsearch,LewayneNaidoo/elasticsearch,jchampion/elasticsearch,nazarewk/elasticsearch,clintongormley/elasticsearch,yanjunh/elasticsearch,girirajsharma/elasticsearch,sreeramjayan/elasticsearch,henakamaMSFT/elasticsearch,fred84/elasticsearch,C-Bish/elasticsearch,naveenhooda2000/elasticsearch,zkidkid/elasticsearch,rlugojr/elasticsearch,umeshdangat/elasticsearch,JSCooke/elasticsearch,fred84/elasticsearch,scorpionvicky/elasticsearch,umeshdangat/elasticsearch,trangvh/elasticsearch,a2lin/elasticsearch,rajanm/elasticsearch,zkidkid/elasticsearch,spiegela/elasticsearch,palecur/elasticsearch,ESamir/elasticsearch,umeshdangat/elasticsearch,coding0011/elasticsearch,xuzha/elasticsearch,elasticdog/elasticsearch,Helen-Zhao/elasticsearch,markharwood/elasticsearch,masaruh/elasticsearch,strapdata/elassandra,mortonsykes/elasticsearch,yynil/elasticsearch,StefanGor/elasticsearch,rlugojr/elasticsearch,ESamir/elasticsearch,jimczi/elasticsearch,brandonkearby/elasticsearch,MisterAndersen/elasticsearch,palecur/elasticsearch,mikemccand/elasticsearch,girirajsharma/elasticsearch,camilojd/elasticsearch,glefloch/elasticsearch,dpursehouse/elasticsearch,MisterAndersen/elasticsearch,mortonsykes/elasticsearch,MaineC/elasticsearch,markwalkom/elasticsearch,girirajsharma/elasticsearch,fernandozhu/elasticsearch,alexshadow007/elasticsearch,wangtuo/elasticsearch,pozhidaevak/elasticsearch,mapr/elasticsearch,xuzha/elasticsearch,wuranbo/elasticsearch,nomoa/elasticsearch,cwurm/elasticsearch,mapr/elasticsearch,nezirus/elasticsearch,wuranbo/elasticsearch,diendt/elasticsearch,JervyShi/elasticsearch,nazarewk/elasticsearch,njlawton/elasticsearch,clintongormley/elasticsearch,markwalkom/elasticsearch,jimczi/elasticsearch,henakamaMSFT/elasticsearch,alexshadow007/elasticsearch,s1monw/elasticsearch,spiegela/elasticsearch,gmarz/elasticsearch,strapdata/elassandra5-rc,strapdata/elassandra5-rc,nomoa/elasticsearch,jprante/elasticsearch,yanjunh/elasticsearch,bawse/elasticsearch,winstonewert/elasticsearch,clintongormley/elasticsearch,camilojd/elasticsearch,davidvgalbraith/elasticsearch,njlawton/elasticsearch,scorpionvicky/elasticsearch,mapr/elasticsearch,gingerwizard/elasticsearch,rajanm/elasticsearch,rajanm/elasticsearch,nilabhsagar/elasticsearch,jchampion/elasticsearch,mmaracic/elasticsearch,ESamir/elasticsearch,spiegela/elasticsearch,geidies/elasticsearch,glefloch/elasticsearch,a2lin/elasticsearch,avikurapati/elasticsearch,trangvh/elasticsearch,spiegela/elasticsearch,diendt/elasticsearch,gingerwizard/elasticsearch,elasticdog/elasticsearch,shreejay/elasticsearch,rlugojr/elasticsearch,LewayneNaidoo/elasticsearch,sneivandt/elasticsearch,jbertouch/elasticsearch,artnowo/elasticsearch,shreejay/elasticsearch,kalimatas/elasticsearch,lks21c/elasticsearch,scottsom/elasticsearch,gfyoung/elasticsearch,maddin2016/elasticsearch,xuzha/elasticsearch,kalimatas/elasticsearch,JSCooke/elasticsearch,JervyShi/elasticsearch,vroyer/elasticassandra,avikurapati/elasticsearch,sreeramjayan/elasticsearch,liweinan0423/elasticsearch,robin13/elasticsearch,maddin2016/elasticsearch,IanvsPoplicola/elasticsearch,MaineC/elasticsearch,artnowo/elasticsearch,i-am-Nathan/elasticsearch,ZTE-PaaS/elasticsearch,tebriel/elasticsearch,Shepard1212/elasticsearch,JackyMai/elasticsearch,mjason3/elasticsearch,LeoYao/elasticsearch,ESamir/elasticsearch,scorpionvicky/elasticsearch,ESamir/elasticsearch,avikurapati/elasticsearch,JackyMai/elasticsearch,clintongormley/elasticsearch,yynil/elasticsearch,nilabhsagar/elasticsearch,njlawton/elasticsearch,gfyoung/elasticsearch,myelin/elasticsearch,Shepard1212/elasticsearch,mapr/elasticsearch,fred84/elasticsearch,GlenRSmith/elasticsearch,winstonewert/elasticsearch,shreejay/elasticsearch,geidies/elasticsearch,diendt/elasticsearch,uschindler/elasticsearch,masaruh/elasticsearch,vroyer/elassandra,kalimatas/elasticsearch,gingerwizard/elasticsearch,C-Bish/elasticsearch,awislowski/elasticsearch,scorpionvicky/elasticsearch,glefloch/elasticsearch,LeoYao/elasticsearch,coding0011/elasticsearch,mapr/elasticsearch,gmarz/elasticsearch,scottsom/elasticsearch,qwerty4030/elasticsearch,MisterAndersen/elasticsearch,IanvsPoplicola/elasticsearch,naveenhooda2000/elasticsearch,yynil/elasticsearch,mikemccand/elasticsearch,wenpos/elasticsearch,yynil/elasticsearch,fred84/elasticsearch,jchampion/elasticsearch,kalimatas/elasticsearch,palecur/elasticsearch,umeshdangat/elasticsearch,a2lin/elasticsearch,geidies/elasticsearch,strapdata/elassandra5-rc,StefanGor/elasticsearch,xuzha/elasticsearch,nazarewk/elasticsearch,sreeramjayan/elasticsearch,nknize/elasticsearch,i-am-Nathan/elasticsearch,sneivandt/elasticsearch,i-am-Nathan/elasticsearch,dongjoon-hyun/elasticsearch,jprante/elasticsearch,strapdata/elassandra,gmarz/elasticsearch,mmaracic/elasticsearch,ThiagoGarciaAlves/elasticsearch,yynil/elasticsearch,scottsom/elasticsearch,jbertouch/elasticsearch,bawse/elasticsearch,liweinan0423/elasticsearch,JervyShi/elasticsearch,ThiagoGarciaAlves/elasticsearch,shreejay/elasticsearch,pozhidaevak/elasticsearch,qwerty4030/elasticsearch,davidvgalbraith/elasticsearch,geidies/elasticsearch,mjason3/elasticsearch,mortonsykes/elasticsearch,masaruh/elasticsearch,IanvsPoplicola/elasticsearch,liweinan0423/elasticsearch,kalimatas/elasticsearch,LeoYao/elasticsearch,fforbeck/elasticsearch,trangvh/elasticsearch,strapdata/elassandra5-rc,lks21c/elasticsearch,tebriel/elasticsearch,jchampion/elasticsearch,JackyMai/elasticsearch,spiegela/elasticsearch,markharwood/elasticsearch,sneivandt/elasticsearch,awislowski/elasticsearch,brandonkearby/elasticsearch,Shepard1212/elasticsearch,sneivandt/elasticsearch,njlawton/elasticsearch,gingerwizard/elasticsearch,umeshdangat/elasticsearch,ZTE-PaaS/elasticsearch,wenpos/elasticsearch,coding0011/elasticsearch,nazarewk/elasticsearch,lks21c/elasticsearch,mmaracic/elasticsearch,brandonkearby/elasticsearch,alexshadow007/elasticsearch,mjason3/elasticsearch,ZTE-PaaS/elasticsearch,ThiagoGarciaAlves/elasticsearch,LewayneNaidoo/elasticsearch,JervyShi/elasticsearch,glefloch/elasticsearch,IanvsPoplicola/elasticsearch,camilojd/elasticsearch,mohit/elasticsearch,brandonkearby/elasticsearch,wuranbo/elasticsearch,markharwood/elasticsearch,gingerwizard/elasticsearch,jprante/elasticsearch,JervyShi/elasticsearch,nilabhsagar/elasticsearch,alexshadow007/elasticsearch,StefanGor/elasticsearch,clintongormley/elasticsearch,bawse/elasticsearch,a2lin/elasticsearch,IanvsPoplicola/elasticsearch,mapr/elasticsearch,nezirus/elasticsearch,girirajsharma/elasticsearch,davidvgalbraith/elasticsearch,yynil/elasticsearch,masaruh/elasticsearch,wuranbo/elasticsearch,pozhidaevak/elasticsearch,zkidkid/elasticsearch,glefloch/elasticsearch,diendt/elasticsearch,strapdata/elassandra5-rc,LeoYao/elasticsearch,mikemccand/elasticsearch,LeoYao/elasticsearch,henakamaMSFT/elasticsearch,lks21c/elasticsearch,episerver/elasticsearch,mikemccand/elasticsearch,wangtuo/elasticsearch,Stacey-Gammon/elasticsearch,artnowo/elasticsearch,yanjunh/elasticsearch,dpursehouse/elasticsearch,HonzaKral/elasticsearch,jbertouch/elasticsearch,fernandozhu/elasticsearch,uschindler/elasticsearch,dpursehouse/elasticsearch,GlenRSmith/elasticsearch,myelin/elasticsearch,episerver/elasticsearch,dongjoon-hyun/elasticsearch,winstonewert/elasticsearch,awislowski/elasticsearch,masaruh/elasticsearch,davidvgalbraith/elasticsearch,gfyoung/elasticsearch,dpursehouse/elasticsearch,jimczi/elasticsearch,qwerty4030/elasticsearch,ESamir/elasticsearch,JackyMai/elasticsearch,rlugojr/elasticsearch,vroyer/elassandra,davidvgalbraith/elasticsearch,elasticdog/elasticsearch,artnowo/elasticsearch,henakamaMSFT/elasticsearch,LewayneNaidoo/elasticsearch,robin13/elasticsearch,fforbeck/elasticsearch,jbertouch/elasticsearch,myelin/elasticsearch,tebriel/elasticsearch,naveenhooda2000/elasticsearch,tebriel/elasticsearch,nknize/elasticsearch,obourgain/elasticsearch,Shepard1212/elasticsearch,myelin/elasticsearch,wangtuo/elasticsearch,markwalkom/elasticsearch,geidies/elasticsearch,mmaracic/elasticsearch,bawse/elasticsearch,episerver/elasticsearch,JSCooke/elasticsearch,LeoYao/elasticsearch,jimczi/elasticsearch,C-Bish/elasticsearch,obourgain/elasticsearch,obourgain/elasticsearch,markwalkom/elasticsearch,mohit/elasticsearch,wuranbo/elasticsearch,brandonkearby/elasticsearch,winstonewert/elasticsearch,JackyMai/elasticsearch,njlawton/elasticsearch,Helen-Zhao/elasticsearch,rajanm/elasticsearch,GlenRSmith/elasticsearch,HonzaKral/elasticsearch,s1monw/elasticsearch,strapdata/elassandra,uschindler/elasticsearch,HonzaKral/elasticsearch,trangvh/elasticsearch,alexshadow007/elasticsearch,strapdata/elassandra,mohit/elasticsearch,s1monw/elasticsearch,gfyoung/elasticsearch,markwalkom/elasticsearch,nezirus/elasticsearch,xuzha/elasticsearch,fernandozhu/elasticsearch,jchampion/elasticsearch,robin13/elasticsearch,MaineC/elasticsearch,trangvh/elasticsearch,StefanGor/elasticsearch,zkidkid/elasticsearch,palecur/elasticsearch,robin13/elasticsearch,s1monw/elasticsearch,i-am-Nathan/elasticsearch,maddin2016/elasticsearch,dongjoon-hyun/elasticsearch,xuzha/elasticsearch,liweinan0423/elasticsearch,mohit/elasticsearch,elasticdog/elasticsearch,MisterAndersen/elasticsearch,zkidkid/elasticsearch,fforbeck/elasticsearch,i-am-Nathan/elasticsearch,markwalkom/elasticsearch,mikemccand/elasticsearch,MaineC/elasticsearch,ThiagoGarciaAlves/elasticsearch,mjason3/elasticsearch,sreeramjayan/elasticsearch,avikurapati/elasticsearch,ZTE-PaaS/elasticsearch,gmarz/elasticsearch,mortonsykes/elasticsearch,strapdata/elassandra,fernandozhu/elasticsearch,ThiagoGarciaAlves/elasticsearch,Stacey-Gammon/elasticsearch,dongjoon-hyun/elasticsearch,uschindler/elasticsearch,maddin2016/elasticsearch,JSCooke/elasticsearch,bawse/elasticsearch,camilojd/elasticsearch,uschindler/elasticsearch,s1monw/elasticsearch,nilabhsagar/elasticsearch,rajanm/elasticsearch,StefanGor/elasticsearch,coding0011/elasticsearch,vroyer/elassandra,nilabhsagar/elasticsearch,myelin/elasticsearch,JSCooke/elasticsearch,camilojd/elasticsearch,nknize/elasticsearch,camilojd/elasticsearch,gingerwizard/elasticsearch,yanjunh/elasticsearch,Stacey-Gammon/elasticsearch,rajanm/elasticsearch,lks21c/elasticsearch,tebriel/elasticsearch,jbertouch/elasticsearch,qwerty4030/elasticsearch,nknize/elasticsearch,ricardocerq/elasticsearch,JervyShi/elasticsearch,geidies/elasticsearch,awislowski/elasticsearch,palecur/elasticsearch,fforbeck/elasticsearch,ThiagoGarciaAlves/elasticsearch,jprante/elasticsearch,LeoYao/elasticsearch,gfyoung/elasticsearch,awislowski/elasticsearch,jprante/elasticsearch,diendt/elasticsearch,mortonsykes/elasticsearch,Stacey-Gammon/elasticsearch,sreeramjayan/elasticsearch,obourgain/elasticsearch,GlenRSmith/elasticsearch,davidvgalbraith/elasticsearch,fernandozhu/elasticsearch,pozhidaevak/elasticsearch,vroyer/elasticassandra,scottsom/elasticsearch,nomoa/elasticsearch,coding0011/elasticsearch,scottsom/elasticsearch,gingerwizard/elasticsearch,MaineC/elasticsearch,nazarewk/elasticsearch,LewayneNaidoo/elasticsearch,HonzaKral/elasticsearch,artnowo/elasticsearch,sreeramjayan/elasticsearch,vroyer/elasticassandra,nknize/elasticsearch,mmaracic/elasticsearch,robin13/elasticsearch,sneivandt/elasticsearch,avikurapati/elasticsearch,GlenRSmith/elasticsearch,clintongormley/elasticsearch,henakamaMSFT/elasticsearch,markharwood/elasticsearch,nezirus/elasticsearch,Stacey-Gammon/elasticsearch,wenpos/elasticsearch,C-Bish/elasticsearch,winstonewert/elasticsearch,cwurm/elasticsearch,Helen-Zhao/elasticsearch,C-Bish/elasticsearch,ricardocerq/elasticsearch,wenpos/elasticsearch,dpursehouse/elasticsearch,wenpos/elasticsearch,nomoa/elasticsearch,fred84/elasticsearch,Helen-Zhao/elasticsearch,fforbeck/elasticsearch,jbertouch/elasticsearch,gmarz/elasticsearch,mjason3/elasticsearch,naveenhooda2000/elasticsearch,diendt/elasticsearch,episerver/elasticsearch,shreejay/elasticsearch,tebriel/elasticsearch,MisterAndersen/elasticsearch,scorpionvicky/elasticsearch