make sure that scanner->config->cset_skip_characters is "" instead of

make sure that scanner->config->cset_skip_characters is "" instead of

Wed Apr 19 08:32:32 2000  Tim Janik  <timj@gtk.org>

        * gscanner.c (g_scanner_new): make sure that
        scanner->config->cset_skip_characters is "" instead of NULL, so we
        don't segfault further on.