PY3: string.translate string.upper don't exist in PY3

Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from Samba commit a0c8c8c8331856d9f09d18b389b7dd01c8d33de2)
(cherry picked from commit 76b2f157)