Snippets for mutt 2.4.1 from Fedora s390x

Sourced from https://kojipkgs.fedoraproject.org/packages/mutt/2.4.1/2.fc45/data/logs/s390x/build.log.

• ../mutt.h:77:16: warning: ignoring return value of ‘fgets_unlocked’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
     77 | # define fgets fgets_unlocked
  

• message.c:208:9: warning: ‘range_begin’ may be used uninitialized [-Wmaybe-uninitialized]
    208 |         mutt_buffer_add_printf(b, "%u:%u", range_begin, range_end);
        |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

• recvattach.c:773:5: warning: ignoring return value of ‘chdir’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    773 |     chdir(mutt_b2s(orig_cwd));
        |     ^~~~~~~~~~~~~~~~~~~~~~~~~
  

• signal.c:57:5: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
     57 |     write(1, "-", 1);
        |     ^~~~~~~~~~~~~~~~
  

• signal.c:50:3: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
     50 |   write(1, &digit, 1);
        |   ^~~~~~~~~~~~~~~~~~~
  

• signal.c:74:5: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
     74 |     write(1, str, len);
        |     ^~~~~~~~~~~~~~~~~~
  

• system.c:94:11: warning: ignoring return value of ‘chdir’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
     94 |           chdir("/");
        |           ^~~~~~~~~~
  

• mutt.h:77:16: warning: ignoring return value of ‘fgets_unlocked’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
     77 | # define fgets fgets_unlocked
  

• mutt_dotlock.c:635:5: warning: ignoring return value of ‘link’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    635 |     link(nfslockfile, lockfile);
        |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~