make ruby proxy worker accept script location
make ruby proxy worker accept script location

This is done so that we can test other PHP clients.

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