Snippets for mutt 2.4.2 from Alpine ppc64le

Sourced from https://build.alpinelinux.org/buildlogs/build-edge-ppc64le/community/mutt/mutt-2.4.2-r0.log.

• mh.c:1465:33: warning: '%s' directive output may be truncated writing up to 1023 bytes into a region of size 13 [-Wformat-truncation=]
   1465 |     snprintf(dest, destlen, ":2,%s", tmp);
        |                                 ^~   ~~~
  

• pgp.c:1136:15: warning: 'saved_offset' may be used uninitialized [-Wmaybe-uninitialized]
   1136 |     b->offset = saved_offset;
        |     ~~~~~~~~~~^~~~~~~~~~~~~~
  

• pgp.c:1135:15: warning: 'saved_length' may be used uninitialized [-Wmaybe-uninitialized]
   1135 |     b->length = saved_length;
        |     ~~~~~~~~~~^~~~~~~~~~~~~~