Move zsh completion logic to new subcommand: stop

Signed-off-by: Steve Durrheimer <s.durrheimer@gmail.com>

contrib/completion/zsh/_docker

@@ -813,7 +813,10 @@ __docker_container_subcommand() {
                 "($help -)*:containers:__docker_complete_running_containers" && ret=0
             ;;
         (stop)
-            __docker_subcommand && ret=0
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -t --time)"{-t=,--time=}"[Number of seconds to try to stop for before killing the container]:seconds to before killing:(1 5 10 30 60)" \
+                "($help -)*:containers:__docker_complete_running_containers" && ret=0
             ;;
         (top)
             __docker_subcommand && ret=0
@@ -2132,12 +2135,6 @@ __docker_subcommand() {
         (rename)
             __docker_container_subcommand && ret=0
             ;;
-        (stop)
-            _arguments $(__docker_arguments) \
-                $opts_help \
-                "($help -t --time)"{-t=,--time=}"[Number of seconds to try to stop for before killing the container]:seconds to before killing:(1 5 10 30 60)" \
-                "($help -)*:containers:__docker_complete_running_containers" && ret=0
-            ;;
         (restart)
             __docker_container_subcommand && ret=0
             ;;
@@ -2197,6 +2194,9 @@ __docker_subcommand() {
         (stats)
             __docker_container_subcommand && ret=0
             ;;
+        (stop)
+            __docker_container_subcommand && ret=0
+            ;;
         (swarm)
             local curcontext="$curcontext" state
             _arguments $(__docker_arguments) \