Add file completion to bash completion for secret create

Signed-off-by: Harald Albers <github@albersweb.de>
Upstream-commit: abc793e333
Component: cli

components/cli/contrib/completion/bash/docker

@@ -1184,7 +1184,7 @@ _docker_config_create() {
 			;;
 		*)
 			local counter=$(__docker_pos_first_nonflag '--label|-l')
-			if [ "$cword" -eq $((counter + 1)) ]; then
+			if [ "$cword" -eq "$((counter + 1))" ]; then
 				_filedir
 			fi
 			;;
@@ -4159,6 +4159,12 @@ _docker_secret_create() {
 		-*)
 			COMPREPLY=( $( compgen -W "--help --label -l" -- "$cur" ) )
 			;;
+		*)
+			local counter=$(__docker_pos_first_nonflag '--label|-l')
+			if [ "$cword" -eq "$((counter + 1))" ]; then
+				_filedir
+			fi
+			;;
 	esac
 }