shell32/tests: Fix a race condition in the DDE ShellExecute() tests on Windows 10.

[Francois Gouget]

Even if we have a results file after a failed ShellExecuteEx() call, it
may not correspond to the last call and should thus be ignored.

Signed-off-by: Francois Gouget <fgouget at free.fr>
---
 dlls/shell32/tests/shlexec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/shell32/tests/shlexec.c b/dlls/shell32/tests/shlexec.c
index ebf9d80..9db12ce 100644
--- a/dlls/shell32/tests/shlexec.c
+++ b/dlls/shell32/tests/shlexec.c
@@ -650,7 +650,7 @@ static INT_PTR shell_execute_ex_(const char* file, int line,
      * functions know about it
      */
     WritePrivateProfileStringA(NULL, NULL, NULL, child_file);
-    if (GetFileAttributesA(child_file) != INVALID_FILE_ATTRIBUTES)
+    if (rc > 32 && GetFileAttributesA(child_file) != INVALID_FILE_ATTRIBUTES)
     {
         int c;
         dump_child_(file, line);
-- 
2.8.0.rc3