When an executor dies it needs to killpg using 0 not getpid().
When an executor dies it needs to killpg using 0 not getpid().

git-svn-id: 03d7800a49d8905ef4fbcc296184319e19243493@1131729 13f79535-47bb-0310-9956-ffa450edef68

jpeach/mesos,Gilbert88/mesos,samwhitlock/mesos-monitoring,craimbert/mesos,asamerh4/mesos,neilconway/mesos,reneploetz/mesos,kaysoky/mesos,reneploetz/mesos,neilconway/mesos,enachb/mesos,Gilbert88/mesos,verizonlabs/mesos,enachb/mesos,charlescearl/VirtualMesos,yuquanshan/customizedMesos,abudnik/mesos,jpeach/mesos,craimbert/mesos,woggle/mesos-old,woggle/mesos-old,gsantovena/mesos,zmalik/mesos,samwhitlock/mesos-monitoring,neilconway/mesos,neilconway/mesos,zmalik/mesos,samwhitlock/mesos-monitoring,reneploetz/mesos,enachb/mesos,enachb/mesos,chhsia0/mesos,neilconway/mesos,samwhitlock/mesos-monitoring,kaysoky/mesos,abudnik/mesos,craimbert/mesos,enachb/mesos,pwendell/mesos,Aman-Jain-14/customizedMesos,dforsyth/mesos,charlescearl/VirtualMesos,kaysoky/mesos,woggle/mesos-old,abudnik/mesos,Aman-Jain-14/customizedMesos,Gilbert88/mesos,Gilbert88/mesos,chhsia0/mesos,woggle/mesos-old,abudnik/mesos,gsantovena/mesos,reneploetz/mesos,woggle/mesos-old,wickman/mesos,Aman-Jain-14/customizedMesos,zmalik/mesos,craimbert/mesos,wickman/mesos,enachb/mesos,Gilbert88/mesos,chhsia0/mesos,Aman-Jain-14/customizedMesos,kaysoky/mesos,Gilbert88/mesos,verizonlabs/mesos,yuquanshan/customizedMesos,reneploetz/mesos,yuquanshan/customizedMesos,neilconway/mesos,neilconway/mesos,andschwa/mesos,charlescearl/VirtualMesos,Gilbert88/mesos,chhsia0/mesos,samwhitlock/mesos-monitoring,asamerh4/mesos,gsantovena/mesos,pwendell/mesos,zmalik/mesos,abudnik/mesos,chhsia0/mesos,andschwa/mesos,dforsyth/mesos,gsantovena/mesos,asamerh4/mesos,wickman/mesos,asamerh4/mesos,verizonlabs/mesos,jpeach/mesos,charlescearl/VirtualMesos,andschwa/mesos,charlescearl/VirtualMesos,pwendell/mesos,gsantovena/mesos,verizonlabs/mesos,verizonlabs/mesos,dforsyth/mesos,kaysoky/mesos,gsantovena/mesos,craimbert/mesos,yuquanshan/customizedMesos,woggle/mesos-old,craimbert/mesos,charlescearl/VirtualMesos,charlescearl/VirtualMesos,zmalik/mesos,andschwa/mesos,jpeach/mesos,abudnik/mesos,dforsyth/mesos,woggle/mesos-old,pwendell/mesos,enachb/mesos,dforsyth/mesos,chhsia0/mesos,asamerh4/mesos,zmalik/mesos,Aman-Jain-14/customizedMesos,wickman/mesos,pwendell/mesos,verizonlabs/mesos,jpeach/mesos,Aman-Jain-14/customizedMesos,woggle/mesos-old,jpeach/mesos,gsantovena/mesos,craimbert/mesos,verizonlabs/mesos,woggle/mesos-old,wickman/mesos,kaysoky/mesos,wickman/mesos,kaysoky/mesos,pwendell/mesos,yuquanshan/customizedMesos,wickman/mesos,andschwa/mesos,dforsyth/mesos,pwendell/mesos,andschwa/mesos,abudnik/mesos,zmalik/mesos,samwhitlock/mesos-monitoring,pwendell/mesos,charlescearl/VirtualMesos,chhsia0/mesos,jpeach/mesos,charlescearl/VirtualMesos,reneploetz/mesos,asamerh4/mesos,Aman-Jain-14/customizedMesos,yuquanshan/customizedMesos,andschwa/mesos,yuquanshan/customizedMesos,dforsyth/mesos,reneploetz/mesos,asamerh4/mesos,pwendell/mesos