Change instance user-data git pull to master

How that infosec_workweek is merged to master we should pull from master

cloudy_mozdef/cloudformation/mozdef-instance.yml

@@ -155,7 +155,7 @@ Resources:
             - systemctl start rsyslog
             - grep "${EFSID}" /etc/fstab >/dev/null || echo "${EFSID}:/ ${EFSMountPoint} efs tls,_netdev" >> /etc/fstab
             - for i in 1 2 3 4 5 6; do mount --verbose --all --types efs defaults && break || sleep 15; done
-            - cd /opt/mozdef && git pull origin infosec_workweek
+            - cd /opt/mozdef && git pull origin master
             - make -C /opt/mozdef -f /opt/mozdef/Makefile  run-cloudy-mozdef
   MozDefAutoScaleGroup:
     Type: AWS::AutoScaling::AutoScalingGroup