The demandoc(1) program neither reads nor writes any databases, so

The demandoc(1) program neither reads nor writes any databases, so
delete a sentence taking about databases.  Having that sentence in
the first place probably was a copy-and-paste mistake when adopting
some text from the makewhatis(8) manual page.

Triggered by a smaller patch sent to discuss@
by Paul A. Patience <paul at apatience dot com>.