[try2 1/1] msi/tests: automation: Fix pointer check before calling lstrcpyW.

[Misha Koshelev]

The previous patch was last week I think. This fixes a Valgrind error in the test. This is
correct as vtResult is just hte _expected_ return type, and this way we check the actual return type 
(new this version) and then the validity of the pointer (same as old patch) before calling lstrcpyW
so we don't pass NULL to lstrcpyW.
---
 dlls/msi/tests/automation.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
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