Snippets for abook 0.6.2 from Fedora s390x

Sourced from https://kojipkgs.fedoraproject.org/packages/abook/0.6.2/2.fc45/data/logs/s390x/build.log.

abook.c:623:9: warning: ignoring return value of ‘system’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  623 |         system(cmd);
      |         ^~~~~~~~~~~

abook.c:648:17: warning: ignoring return value of ‘system’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  648 |                 system(cmd);
      |                 ^~~~~~~~~~~

edit.c:211:16: warning: variable ‘x’ set but not used [-Wunused-but-set-variable=]
  211 |         int y, x;
      |                ^

edit.c:684:47: warning: variable ‘window_x’ set but not used [-Wunused-but-set-variable=]
  684 |                                 int window_y, window_x;
      |                                               ^~~~~~~~

edit.c:504:17: warning: ‘strncpy’ specified bound 12 equals destination size [-Wstringop-truncation]
  504 |         p = s = strncpy(buf, str, sizeof(buf));
      |                 ^

filter.c:1251:9: warning: ignoring return value of ‘fgets’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
 1251 |         fgets(line, LINESIZE, in);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~

filter.c:1258:25: warning: ignoring return value of ‘fgets’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
 1258 |                         fgets(line, LINESIZE, in);
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~

filter.c:690:15: warning: array subscript 18 is outside array bounds of ‘char *[18]’ [-Warray-bounds=]
  690 |         if(!li[LDIF_OBJECTCLASS])
      |             ~~^~~~~~~~~~~~~~~~~~

filter.c:1226:25: warning: ‘__strncpy_chk’ specified bound depends on the length of the source argument [-Wstringop-truncation]
 1226 |                         strncpy(tmp, start, len);
      |                         ^

/usr/include/bits/string_fortified.h:152:10: warning: ‘strcat’ forming offset 7 is out of the bounds [0, 7] of object ‘groupstr’ with type ‘char[7]’ [-Warray-bounds=]
  152 |   return __builtin___strcat_chk (__dest, __src, __glibc_objsize (__dest));
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

/usr/include/bits/string_fortified.h:93:10: warning: ‘strcpy’ forming offset 7 is out of the bounds [0, 7] of object ‘groupstr’ with type ‘char[7]’ [-Warray-bounds=]
   93 |   return __builtin___strcpy_chk (__dest, __src, __glibc_objsize (__dest));
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

filter.c:2707:25: warning: ‘strncat’ output truncated before terminating nul copying 1 byte from a string of the same length [-Wstringop-truncation]
 2707 |                         strncat(fmt_string, tmp, 1);
      |                         ^

gettext.h:9:27: warning: return discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
    9 | #  define gettext(Msgid) ((const char *) (Msgid))
      |                          ~^~~~~~~~~~~~~~~~~~~~~~~

ui.c:308:61: warning: array subscript has type ‘char’ [-Wchar-subscripts]
  308 |                         helpline[i-1] = remap_table[helpline[i-1]];
      |                                                     ~~~~~~~~^~~~~

ui.c:411:23: warning: assignment discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
  411 |                 if((s = strchr(choices, ch)))
      |                       ^

ui.c:736:25: warning: ‘strncpy’ specified bound 81 equals destination size [-Wstringop-truncation]
  736 |                         strncpy(findstr, s, MAX_FIELD_LEN);
      |                         ^