fix(deisctl/units): fix ncat loop in builder and registry

Author: carmstrong

deisctl/units/deis-builder.service

@@ -7,7 +7,7 @@ TimeoutStartSec=30m
 ExecStartPre=/bin/sh -c "IMAGE=`/run/deis/bin/get_image /deis/builder`; docker history $IMAGE >/dev/null || docker pull $IMAGE"
 ExecStartPre=/bin/sh -c "docker inspect deis-builder >/dev/null && docker rm -f deis-builder || true"
 ExecStart=/bin/sh -c "IMAGE=`/run/deis/bin/get_image /deis/builder` && docker run --name deis-builder --rm -p 2223:22 -e EXTERNAL_PORT=2223 -e HOST=$COREOS_PRIVATE_IPV4 --privileged $IMAGE"
-ExecStartPost=/bin/sh -c "echo 'Waiting for builder on 2223/tcp...' && until /bin/sh -c \"echo 'dummy-value' | ncat $COREOS_PRIVATE_IPV4 2223\" >/dev/null 2>&1; do sleep 1; done"
+ExecStartPost=/bin/sh -c "echo 'Waiting for builder on 2223/tcp...' && until echo 'dummy-value' | ncat $COREOS_PRIVATE_IPV4 2223 >/dev/null 2>&1; do sleep 1; done"
 ExecStopPost=/usr/bin/docker stop deis-builder
 
 [Install]

deisctl/units/deis-registry.service

@@ -9,7 +9,7 @@ TimeoutStartSec=30m
 ExecStartPre=/bin/sh -c "IMAGE=`/run/deis/bin/get_image /deis/registry`; docker history $IMAGE >/dev/null || docker pull $IMAGE"
 ExecStartPre=/bin/sh -c "docker inspect deis-registry >/dev/null && docker rm -f deis-registry || true"
 ExecStart=/bin/sh -c "IMAGE=`/run/deis/bin/get_image /deis/registry` && docker run --name deis-registry --rm -p 5000:5000 -e EXTERNAL_PORT=5000 -e HOST=$COREOS_PRIVATE_IPV4 --volumes-from deis-registry-data $IMAGE"
-ExecStartPost=/bin/sh -c "echo 'Waiting for listener on 5000/tcp...' && until /bin/sh -c \"echo 'dummy-value' | ncat $COREOS_PRIVATE_IPV4 5000\" >/dev/null 2>&1; do sleep 1; done && docker pull deis/slugrunner:latest && docker tag deis/slugrunner $COREOS_PRIVATE_IPV4:5000/deis/slugrunner && docker push $COREOS_PRIVATE_IPV4:5000/deis/slugrunner"
+ExecStartPost=/bin/sh -c "echo 'Waiting for listener on 5000/tcp...' && until echo 'dummy-value' | ncat $COREOS_PRIVATE_IPV4 5000 >/dev/null 2>&1; do sleep 1; done && docker pull deis/slugrunner:latest && docker tag deis/slugrunner $COREOS_PRIVATE_IPV4:5000/deis/slugrunner && docker push $COREOS_PRIVATE_IPV4:5000/deis/slugrunner"
 ExecStopPost=/usr/bin/docker stop deis-registry
 
 [Install]