torture: Fix a torture crash with -O3

torture: Fix a torture crash with -O3

When compiled with -O3, smbtorture can crash after the following valgrind
trace:

==16944== Conditional jump or move depends on uninitialised value(s)
==16944==    at 0x57FFAC3: ndr_push_unique_ptr (ndr_basic.c:730)
==16944==    by 0x58CB855: ndr_push_spoolss_SetPrinterInfo (ndr_spoolss.c:7939)
==16944==    by 0x58E2F95: ndr_push_spoolss_SetPrinter (ndr_spoolss.c:24724)
==16944==    by 0x417C78C: dcerpc_binding_handle_call_send (binding_handle.c:410)
==16944==    by 0x417C986: dcerpc_binding_handle_call (binding_handle.c:547)
==16944==    by 0x522059C: dcerpc_spoolss_SetPrinter_r (ndr_spoolss_c.c:1722)
==16944==    by 0x2853BD: test_sd_set_level (spoolss.c:1248)
==16944==    by 0x28F146: test_PrinterInfo_SD (spoolss.c:1962)
==16944==    by 0x2A3C31: test_EnumPrinters_old (spoolss.c:6589)
==16944==    by 0x41F6D66: internal_torture_run_test.part.0 (torture.c:442)
==16944==    by 0x41F711F: torture_run_tcase_restricted (torture.c:758)
==16944==    by 0x2018E8: run_matching.isra.1 (smbtorture.c:103)
==16944==    by 0x20176B: run_matching.isra.1 (smbtorture.c:95)
==16944==    by 0x20176B: run_matching.isra.1 (smbtorture.c:95)
==16944==    by 0x201C12: torture_run_named_tests (smbtorture.c:143)
==16944==    by 0x202F5B: main (smbtorture.c:661)

My assumption is that with optimization gcc makes use of the fact that the
structures that this patch moves go out of scope.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>
Autobuild-User(master): David Disseldorp <ddiss@samba.org>
Autobuild-Date(master): Fri Feb 28 21:27:11 CET 2014 on sn-devel-104