Silence gcc-9 -Wstringop-truncation warnings:

[sezero]

cli/wavpack.c: In function 'main':
cli/wavpack.c:350:5: warning: 'strncpy' specified bound 4096 equals destination size [-Wstringop-truncation]
  350 |     strncpy (selfname, *argv, sizeof (selfname));
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cli/wvunpack.c: In function 'main':
cli/wvunpack.c:288:5: warning: 'strncpy' specified bound 4096 equals destination size [-Wstringop-truncation]
  288 |     strncpy (selfname, *argv, sizeof (selfname));
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[dbry]

Thanks @sezero !