Log Message:
devel/libbsd: update to 0.12.1

# Noteworthy changes (since 0.11.8)

- Fix missing installation of err.h. Closes: #1064909
- Support for Solaris, macOS and AIX (now build and pass tests).
- Improve ABI selection handling for a more controlled ports
  ABI.
- Use -isystem instead of -I due the overlay via #include_next usage.
- Sync strtoi()/strtou() implementations from NetBSD to get the new
  error handling behavior.
- Add explicit time32 and time64 support.
- Rework ABI selection logic.
- Add closefrom(), strlcpy() and strlcat() as superseded functions
- Manual pages, documentation and build system cleanups.