Add comments for setting the env variable
Add comments for setting the env variable

firebase/grpc,murgatroid99/grpc,pszemus/grpc,adelez/grpc,adelez/grpc,PeterFaiman/ruby-grpc-minimal,vjpai/grpc,mehrdada/grpc,dgquintas/grpc,muxi/grpc,mehrdada/grpc,daniel-j-born/grpc,ncteisen/grpc,firebase/grpc,daniel-j-born/grpc,chrisdunelm/grpc,ncteisen/grpc,jboeuf/grpc,sreecha/grpc,vjpai/grpc,Vizerai/grpc,jtattermusch/grpc,ejona86/grpc,Vizerai/grpc,jboeuf/grpc,vjpai/grpc,jtattermusch/grpc,thinkerou/grpc,sreecha/grpc,fuchsia-mirror/third_party-grpc,murgatroid99/grpc,firebase/grpc,kpayson64/grpc,kpayson64/grpc,muxi/grpc,firebase/grpc,daniel-j-born/grpc,deepaklukose/grpc,donnadionne/grpc,chrisdunelm/grpc,chrisdunelm/grpc,Vizerai/grpc,deepaklukose/grpc,simonkuang/grpc,stanley-cheung/grpc,jboeuf/grpc,grpc/grpc,pszemus/grpc,jtattermusch/grpc,pszemus/grpc,firebase/grpc,kpayson64/grpc,ejona86/grpc,ctiller/grpc,nicolasnoble/grpc,geffzhang/grpc,chrisdunelm/grpc,murgatroid99/grpc,mehrdada/grpc,pszemus/grpc,Vizerai/grpc,chrisdunelm/grpc,Vizerai/grpc,ctiller/grpc,mehrdada/grpc,fuchsia-mirror/third_party-grpc,deepaklukose/grpc,Vizerai/grpc,thinkerou/grpc,mehrdada/grpc,stanley-cheung/grpc,nicolasnoble/grpc,dgquintas/grpc,jtattermusch/grpc,sreecha/grpc,pszemus/grpc,ncteisen/grpc,deepaklukose/grpc,grpc/grpc,murgatroid99/grpc,thinkerou/grpc,donnadionne/grpc,murgatroid99/grpc,jtattermusch/grpc,firebase/grpc,vjpai/grpc,grpc/grpc,ejona86/grpc,PeterFaiman/ruby-grpc-minimal,PeterFaiman/ruby-grpc-minimal,jboeuf/grpc,ncteisen/grpc,carl-mastrangelo/grpc,daniel-j-born/grpc,donnadionne/grpc,kpayson64/grpc,deepaklukose/grpc,carl-mastrangelo/grpc,jboeuf/grpc,chrisdunelm/grpc,kpayson64/grpc,nicolasnoble/grpc,nicolasnoble/grpc,ctiller/grpc,chrisdunelm/grpc,dgquintas/grpc,jtattermusch/grpc,jboeuf/grpc,donnadionne/grpc,grpc/grpc,adelez/grpc,adelez/grpc,pszemus/grpc,fuchsia-mirror/third_party-grpc,ctiller/grpc,simonkuang/grpc,deepaklukose/grpc,thinkerou/grpc,ejona86/grpc,jboeuf/grpc,carl-mastrangelo/grpc,simonkuang/grpc,firebase/grpc,geffzhang/grpc,dgquintas/grpc,ncteisen/grpc,jtattermusch/grpc,carl-mastrangelo/grpc,muxi/grpc,ncteisen/grpc,murgatroid99/grpc,carl-mastrangelo/grpc,simonkuang/grpc,ejona86/grpc,stanley-cheung/grpc,Vizerai/grpc,stanley-cheung/grpc,thinkerou/grpc,simonkuang/grpc,nicolasnoble/grpc,kpayson64/grpc,ejona86/grpc,daniel-j-born/grpc,donnadionne/grpc,vjpai/grpc,thinkerou/grpc,vjpai/grpc,chrisdunelm/grpc,dgquintas/grpc,grpc/grpc,sreecha/grpc,firebase/grpc,grpc/grpc,ejona86/grpc,kpayson64/grpc,ctiller/grpc,muxi/grpc,sreecha/grpc,daniel-j-born/grpc,chrisdunelm/grpc,jboeuf/grpc,chrisdunelm/grpc,pszemus/grpc,thinkerou/grpc,nicolasnoble/grpc,ejona86/grpc,chrisdunelm/grpc,muxi/grpc,muxi/grpc,muxi/grpc,grpc/grpc,kpayson64/grpc,donnadionne/grpc,adelez/grpc,PeterFaiman/ruby-grpc-minimal,muxi/grpc,murgatroid99/grpc,geffzhang/grpc,mehrdada/grpc,sreecha/grpc,murgatroid99/grpc,stanley-cheung/grpc,dgquintas/grpc,pszemus/grpc,sreecha/grpc,jboeuf/grpc,nicolasnoble/grpc,donnadionne/grpc,nicolasnoble/grpc,stanley-cheung/grpc,stanley-cheung/grpc,murgatroid99/grpc,carl-mastrangelo/grpc,simonkuang/grpc,ncteisen/grpc,deepaklukose/grpc,pszemus/grpc,grpc/grpc,ejona86/grpc,ncteisen/grpc,jboeuf/grpc,vjpai/grpc,fuchsia-mirror/third_party-grpc,ctiller/grpc,vjpai/grpc,daniel-j-born/grpc,stanley-cheung/grpc,ctiller/grpc,fuchsia-mirror/third_party-grpc,ctiller/grpc,ncteisen/grpc,grpc/grpc,mehrdada/grpc,fuchsia-mirror/third_party-grpc,Vizerai/grpc,carl-mastrangelo/grpc,ncteisen/grpc,sreecha/grpc,adelez/grpc,dgquintas/grpc,ctiller/grpc,donnadionne/grpc,jtattermusch/grpc,adelez/grpc,jtattermusch/grpc,PeterFaiman/ruby-grpc-minimal,ctiller/grpc,kpayson64/grpc,PeterFaiman/ruby-grpc-minimal,geffzhang/grpc,mehrdada/grpc,sreecha/grpc,ncteisen/grpc,sreecha/grpc,sreecha/grpc,carl-mastrangelo/grpc,Vizerai/grpc,carl-mastrangelo/grpc,muxi/grpc,jboeuf/grpc,ejona86/grpc,thinkerou/grpc,vjpai/grpc,PeterFaiman/ruby-grpc-minimal,stanley-cheung/grpc,nicolasnoble/grpc,jboeuf/grpc,donnadionne/grpc,ncteisen/grpc,vjpai/grpc,deepaklukose/grpc,pszemus/grpc,deepaklukose/grpc,mehrdada/grpc,stanley-cheung/grpc,PeterFaiman/ruby-grpc-minimal,adelez/grpc,mehrdada/grpc,firebase/grpc,fuchsia-mirror/third_party-grpc,mehrdada/grpc,fuchsia-mirror/third_party-grpc,adelez/grpc,ctiller/grpc,PeterFaiman/ruby-grpc-minimal,simonkuang/grpc,stanley-cheung/grpc,firebase/grpc,dgquintas/grpc,simonkuang/grpc,dgquintas/grpc,jtattermusch/grpc,pszemus/grpc,grpc/grpc,thinkerou/grpc,carl-mastrangelo/grpc,thinkerou/grpc,ejona86/grpc,murgatroid99/grpc,firebase/grpc,donnadionne/grpc,muxi/grpc,dgquintas/grpc,Vizerai/grpc,geffzhang/grpc,firebase/grpc,jtattermusch/grpc,carl-mastrangelo/grpc,daniel-j-born/grpc,vjpai/grpc,kpayson64/grpc,nicolasnoble/grpc,PeterFaiman/ruby-grpc-minimal,vjpai/grpc,daniel-j-born/grpc,grpc/grpc,geffzhang/grpc,ejona86/grpc,stanley-cheung/grpc,fuchsia-mirror/third_party-grpc,donnadionne/grpc,fuchsia-mirror/third_party-grpc,geffzhang/grpc,pszemus/grpc,geffzhang/grpc,simonkuang/grpc,nicolasnoble/grpc,ctiller/grpc,carl-mastrangelo/grpc,muxi/grpc,thinkerou/grpc,grpc/grpc,mehrdada/grpc,kpayson64/grpc,jtattermusch/grpc,sreecha/grpc,muxi/grpc,nicolasnoble/grpc,donnadionne/grpc,dgquintas/grpc,thinkerou/grpc,geffzhang/grpc,Vizerai/grpc