Fixed #750

Signed-off-by: Kotaro Yoshimatsu <kotaro.yoshimatsu@gmail.com>
(cherry picked from commit db05d8ad79)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

components/cli/contrib/completion/zsh/_docker

@@ -745,7 +745,7 @@ __docker_container_subcommand() {
                 "($help)--privileged[Give extended Linux capabilities to the command]" \
                 "($help -t --tty)"{-t,--tty}"[Allocate a pseudo-tty]" \
                 "($help -u --user)"{-u=,--user=}"[Username or UID]:user:_users" \
-                "($help -w --workdir)"{-w=,--workdir=}"[Working directory inside the container]:directory:_directories"
+                "($help -w --workdir)"{-w=,--workdir=}"[Working directory inside the container]:directory:_directories" \
                 "($help -):containers:__docker_complete_running_containers" \
                 "($help -)*::command:->anycommand" && ret=0
             case $state in