[PATCH] winetest: Don't parse the test list if 'test --list' failed.

[Francois Gouget]

Any non-zero exit code is grounds for ignoring the 'test --list'
output.
This also causes get_subtests() to return the actual process exit code
rather than a generic internal error when it fails to parse the test
list.

Signed-off-by: Francois Gouget 
----
The better diagnostic error code may help further diagnosing bug 48061.
* WineTest: get_subtests() fails randomly
  https://bugs.winehq.org/show_bug.cgi?id=48061
---
 programs/winetest/main.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/programs/winetest/main.c b/programs/winetest/main.c
index e203b781dc8..2e5fdc6ab8c 100644
--- a/programs/winetest/main.c
+++ b/programs/winetest/main.c
@@ -724,9 +724,12 @@ get_subtests (const char *tempdir, struct wine_test *test, LPSTR res_name)
     }
     heap_free (cmd);

-    if (status == -2)
+    if (status)
     {
-        report (R_ERROR, "Cannot run %s error %u", test->exename, err);
+        if (status == -2)
+            report (R_ERROR, "Cannot run %s error %u", test->exename, err);
+        else
+            err = status;
         CloseHandle( subfile );
         goto quit;
     }