Snippets for fdkaac 1.0.8 from Fedora s390x

Sourced from https://kojipkgs.fedoraproject.org/packages/fdkaac/1.0.8/1.fc45/data/logs/s390x/build.log.

src/lpc.c:84:12: warning: ‘*aut_106’ may be used uninitialized [-Wmaybe-uninitialized]
   84 |   error=aut[0] * (1. + 1e-10);
      |         ~~~^~~

src/metadata.c:123:15: warning: ignoring return value of ‘fread’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  123 |     if (data) fread(data, 1, size, fp);
      |               ^~~~~~~~~~~~~~~~~~~~~~~~

src/parson.c:503:5: warning: ignoring return value of ‘fread’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  503 |     fread(file_contents, file_size, 1, fp);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/parson.c:124:5: warning: ‘__strncpy_chk’ output truncated before terminating nul copying as many bytes from a string as its length [-Wstringop-truncation]
  124 |     strncpy(output_string, string, n);
      |     ^