Snippets for mutt 2.4.2 from Alpine riscv64

Sourced from https://build.alpinelinux.org/buildlogs/build-edge-riscv64/community/mutt/mutt-2.4.2-r0.log.

• 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;
        |     ~~~~~~~~~~^~~~~~~~~~~~~~