Conform to proper NAME section format

The NAME section format is comma separated names to the left of the
left of the dash, free form on the right.  If we don't follow that
form, programs like apropos(1) and whatis(1) can't do their job
properly.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8267)