[test suite] minor bug fix for file existence check

diff --git a/test/test-fwknop.pl b/test/test-fwknop.pl
index d4bc38c..7d6d867 100755 (executable)
--- a/test/test-fwknop.pl
+++ b/test/test-fwknop.pl
@@ -3029,7 +3029,7 @@ sub init() {
 
     for my $file (glob("$output_dir/*.test"), "$output_dir/init",
             $tmp_rc_file, $logfile, $key_gen_file) {
-        next unless -d $file;
+        next unless -e $file;
         unlink $file or die "[*] Could not unlink($file)";
     }