If "var" is a symlink which does not point to anything, remove it before creating real var

    if ( ! -d $opt_vardir )

    {

      if ( -l $opt_vardir and ! -d readlink($opt_vardir) )

      {

	mtr_report("Removing $opt_vardir symlink without destination");

	unlink($opt_vardir);

      }

      # The "var" dir does not exist already

      # the processes that mtr_kill_leftovers start will write

      # their log files to var/log so it should be created