lib/58040: missing mlinks for most of OpenSSL API

[campbell+netbsd%mumble.net@localhost]

>Number:         58040
>Category:       lib
>Synopsis:       missing mlinks for most of OpenSSL API
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    lib-bug-people
>State:          open
>Class:          doc-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Mar 15 14:45:00 +0000 2024
>Originator:     Taylor R Campbell
>Release:        current, 10, 9, 8, ...
>Organization:
The OpenSSL Mandation
>Environment:
>Description:
Vast majority of OpenSSL API that has man pages is missing mlinks for them, so, e.g., `man EVP_DigestUpdate' doesn't work, even though it turns up in apropos.
>How-To-Repeat:
% apropos EVP_DigestUpdate
EVP_DigestUpdate (3)    EVP digest routines
% man EVP_DigestUpdate
man: no entry for EVP_DigestUpdate in the manual.

>Fix:
Yes, please!

1. Create the mlinks.
2. Systematize the discovery of what mlinks _should_ be there so if we're missing any it breaks the build.