s4:torture:raw: fix 'use of uninitialised value of size 8' valgrind errors

s4:torture:raw: fix 'use of uninitialised value of size 8' valgrind errors

smbtorture test raw.acls.create_file.create_file produces the following
valgrind trace

==31783== Use of uninitialised value of size 8
==31783==    at 0xFB0B061: _itoa_word (in /lib64/libc-2.19.so)
==31783==    by 0xFB0EAD2: vfprintf (in /lib64/libc-2.19.so)
==31783==    by 0xFB36712: vasprintf (in /lib64/libc-2.19.so)
==31783==    by 0xAEBB348: ndr_print_debug_helper (ndr.c:314)
==31783==    by 0xAEB8ED1: ndr_print_uint16 (ndr_basic.c:1055)
==31783==    by 0x3E591A: ndr_print_security_ace (ndr_security.c:539)
==31783==    by 0x3E621A: ndr_print_security_acl (ndr_security.c:642)
==31783==    by 0x3E7A3F: ndr_print_security_descriptor (ndr_security.c:890)
==31783==    by 0xAEBB860: ndr_print_debug (ndr.c:409)
==31783==    by 0x20C91F: verify_sd (acls.c:89)
==31783==    by 0x20D8C3: test_nttrans_create_ext (acls.c:306)
==31783==    by 0x20E3A8: test_nttrans_create_file (acls.c:381)
==31783==    by 0x16B21D: wrap_simple_1smb_test (util_smb.c:856)
==31783==    by 0x955368F: internal_torture_run_test (torture.c:442)
==31783==    by 0x9553A6B: torture_run_test_restricted (torture.c:542)
==31783==    by 0x260108: run_matching (smbtorture.c:110)
==31783==    by 0x25FFCA: run_matching (smbtorture.c:95)
==31783==    by 0x25FFCA: run_matching (smbtorture.c:95)
==31783==    by 0x260229: torture_run_named_tests (smbtorture.c:143)
==31783==    by 0x261EA8: main (smbtorture.c:665)
==31783==
==31783== Conditional jump or move depends on uninitialised value(s)
==31783==    at 0xFB0B068: _itoa_word (in /lib64/libc-2.19.so)
==31783==    by 0xFB0EAD2: vfprintf (in /lib64/libc-2.19.so)
==31783==    by 0xFB36712: vasprintf (in /lib64/libc-2.19.so)
==31783==    by 0xAEBB348: ndr_print_debug_helper (ndr.c:314)
==31783==    by 0xAEB8ED1: ndr_print_uint16 (ndr_basic.c:1055)
==31783==    by 0x3E591A: ndr_print_security_ace (ndr_security.c:539)
==31783==    by 0x3E621A: ndr_print_security_acl (ndr_security.c:642)
==31783==    by 0x3E7A3F: ndr_print_security_descriptor (ndr_security.c:890)
==31783==    by 0xAEBB860: ndr_print_debug (ndr.c:409)
==31783==    by 0x20C91F: verify_sd (acls.c:89)
==31783==    by 0x20D8C3: test_nttrans_create_ext (acls.c:306)
==31783==    by 0x20E3A8: test_nttrans_create_file (acls.c:381)
==31783==    by 0x16B21D: wrap_simple_1smb_test (util_smb.c:856)
==31783==    by 0x955368F: internal_torture_run_test (torture.c:442)
==31783==    by 0x9553A6B: torture_run_test_restricted (torture.c:542)
==31783==    by 0x260108: run_matching (smbtorture.c:110)
==31783==    by 0x25FFCA: run_matching (smbtorture.c:95)
==31783==    by 0x25FFCA: run_matching (smbtorture.c:95)
==31783==    by 0x260229: torture_run_named_tests (smbtorture.c:143)
==31783==    by 0x261EA8: main (smbtorture.c:665)
==31783==

Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>