user32/tests: Silence some clipboard traces that generate too many lines.

[Francois Gouget]

To see them, set WINETEST_DEBUG=2 or higher.
---
 dlls/user32/tests/clipboard.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/user32/tests/clipboard.c b/dlls/user32/tests/clipboard.c
index 40218be..01dbe93 100644
--- a/dlls/user32/tests/clipboard.c
+++ b/dlls/user32/tests/clipboard.c
@@ -150,8 +150,8 @@ todo_wine
 
         if (format_id < 0xc000)
             ok(!len, "GetClipboardFormatNameA should fail, but it returned %d (%s)\n", len, buf);
-        else
-            if (len) trace("%04x: %s\n", format_id, len ? buf : "");
+        else if (len && winetest_debug > 1)
+            trace("%04x: %s\n", format_id, len ? buf : "");
     }
 
     ret = OpenClipboard(0);
-- 
2.1.4