option 'lmdb-mapsize' was not enabled at compile time

[russellbell at gmail.com]

	Beginning with bind-9.11.2-i586-1 I've gotten this message on
boot:

	named[1094]: ./config.c: option 'lmdb-mapsize' was not enabled at compile time (ignored)

	named works - this is just noise in my system logs.

russell bell