net/bind911: update to 9.11.12

Update bind911 to 9.11.12 (BIND 9.11.12).  This is not security release.

--- 9.11.12 released ---

5296. [bug] Address various issues reported by cppcheck. [GL !2421]

5294. [func] Fallback to ACE name on output in locale, which does not
support converting it to unicode.  [GL #846]

5293. [bug] On Windows, named crashed upon any attempt to fetch XML
statistics from it. [GL #1245]

5292. [bug] Queue 'rndc nsec3param' requests while signing inline
zone changes. [GL #1205]

(taca)