Testsuite: fix for not-previously-existing logfile

diff --git a/test/runtest b/test/runtest
index 1fd233286d36feb0534488b3c1486d289aceed26..088c742be5ff0532712a4a6139542594ee6d8620 100755 (executable)
--- a/test/runtest
+++ b/test/runtest
@@ -3386,7 +3386,8 @@ for ($i = 0; $i < @test_dirs; $i++)
 
 # Scan for relevant tests
 
-tests_exit(-1, "Failed to unlink $log_summary_filename") if !unlink($log_summary_filename);
+tests_exit(-1, "Failed to unlink $log_summary_filename")
+  if (-e $log_summary_filename && !unlink($log_summary_filename));
 for ($i = 0; $i < @test_dirs; $i++)
   {
   my($testdir) = $test_dirs[$i];