Snippets for rpki-client 9.9 from Fedora s390x

Sourced from https://kojipkgs.fedoraproject.org/packages/rpki-client/9.9/1.fc46/data/logs/s390x/build.log.

• vis.c:252:23: warning: pointer 'buf_15' may be used after 'realloc' [-Wuse-after-free=]
    252 |                 *outp = buf;
        |                 ~~~~~~^~~~~