Snippets for argtable2 2.13 from Fedora ppc64le

Sourced from https://kojipkgs.fedoraproject.org/packages/argtable/2.13/35.fc45/data/logs/ppc64le/build.log.

• argtable2.c:97:6: warning: ‘dump_longoptions’ defined but not used [-Wunused-function]
     97 | void dump_longoptions(struct longoptions* longoptions)
        |      ^~~~~~~~~~~~~~~~
  

• argtable2.c:590:10: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
    590 |     *dest=0;
        |     ~~~~~^~
  

• argtable2.c:590:10: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
    590 |     *dest=0;
        |          ^