* lib/strverscmp.c: Sync from glibc, except use UTF-8 encoding in
comments, include libc-config.h, define __strverscmp to be
strverscmp, and don’t assume types line uint8_t and int8_t that
that C99 doesn’t guarantee.
[!_LIBC]: Include libc-config.h; define __strverscmp.
Include stdint.h.
(__strverscmp): Assume C99. Use uint_least8_t
and int_least8_t instead of unsigned char and signed char.
* modules/strverscmp (Depends-on): Add libc-config, stdint.