Snippets for harfbuzz 14.2.1 from Fedora s390x

Sourced from https://kojipkgs.fedoraproject.org/packages/harfbuzz/14.2.1/4.fc45/data/logs/s390x/build.log.

• ../util/gpu/demo-view.cc:373:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
    373 |       if (vu->fullscreen)
        |       ^~