Control output from docker-remote.

So now I can run `$(eval docker remote hostname)`.

Documents/bin/_docker-remote

 #!/bin/sh
 set -eu
 
-
 [ -n "$1" ] || { echo "You must specify host." >&2; exit 1; }
 host="$1"
 localsocket="$HOME/.ssh/docker_$host.sock"
 
-lsof -t "$localsocket" > /dev/null || rm "$localsocket"
-forward "$host" "$localsocket:/var/run/docker.sock"
+lsof -t "$localsocket" > /dev/null 2>&1 || rm -f "$localsocket"
+forward "$host" "$localsocket:/var/run/docker.sock" > /dev/null 2>&1
 
 # Echo the DOCKER_HOST export command, for eval'ing.
 echo "export DOCKER_HOST=unix://$localsocket"

Documents/bin/forward

@@ -10,6 +10,10 @@ forward="$2" || { usage >&2; exit 1; }
 alias ssh='ssh -fnNTS ~/.ssh/%C.sock'
 
 # shellcheck disable=SC2029
-ssh -o ControlMaster=auto -o ControlPersist=0 -o ExitOnForwardFailure=no -o ControlPersist=0 "$host"
+ssh -o ControlMaster=auto \
+    -o ControlPersist=0 \
+    -o ExitOnForwardFailure=no \
+    -o ControlPersist=0 \
+    "$host"
 # shellcheck disable=SC2029
 ssh -O forward -L "$forward" "$host"