Log Message:
Update mini_httpd to version 1.30

pkgsrc changes: added -lsendfile to SunOS build to make it work.

Release notes:

New in version 1.30:
Enlarged request read buffer to 50KB.
Fix security bug that let remote users read arbitrary files. (CVE-2018-18778)

New in version 1.29:
Allow CGI to handle HTTP methods besides GET/HEAD/POST.

New in version 1.28:
Fix to buffer overrun bug in htpasswd. Reported by Alessio Santoru as CVE-2017-17663.
Some fixes to keep connections from getting stuck forever in FIN_WAIT_2 state.