smbclient: Fix fd leak with "showacls;ls"

smbclient: Fix fd leak with "showacls;ls"

Bug: https://bugzilla.samba.org/show_bug.cgi?id=15391

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Jun  8 16:55:14 UTC 2023 on atb-devel-224

(cherry picked from commit 5c52f71c0d0e162dcbf42378357313035efa860f)

Autobuild-User(v4-18-test): Jule Anger <janger@samba.org>
Autobuild-Date(v4-18-test): Mon Jun 12 08:25:18 UTC 2023 on atb-devel-224