[-bug] A test fails when exit() was given a multiple of 256 as argument.

git-svn-id: https://subversion.renater.fr/sympa/branches/sympa-6.2-branch@12144 05aa8bb8-cd2b-0410-b1d7-8918dfa770ce

t/LockedFile.t

@@ -75,7 +75,7 @@ sub attempt_parallel_lock {
 
     my $code = <<EOF;
 my \$lock = Sympa::LockedFile->new("$file", -1, "$mode");
-exit \$lock + 0;
+exit !!\$lock;
 EOF
     my @command = ($EXECUTABLE_NAME, "-MSympa::LockedFile", "-e", $code);
     system(@command);