[bug #54101] documentation for .ss either incorrect or incomplete

[G. Branden Robinson]

Update of bug #54101 (project groff):

                  Status:             In Progress => Fixed                  
             Open/Closed:                    Open => Closed                 
         Planned Release:                    None => 1.22.5                 

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Follow-up Comment #9:

Fixed, as in documentation rewritten, in
866bc203326528237f08f7debe9061ba8f430e1e.

I did look into what it would take to get adjustment to be weighted more
strongly for the additional inter-sentence space than for ordinary inter-word
space, and it is not trivially easy, at least not with my current level of
understanding of src/roff/troff.

By the time extra space needs to be distributed, _all_ interword spacing on
the line has been converted to generic "space nodes" which don't know whether
they're between words or between sentences.

A vague picture in my mind began to form of how I might overcome that (add a
flag to the space_node class, or subclass it), but at the same time I realized
I don't actually know if it is typographically _sound_ to distribute extra
space the way I was planning.

I guess I should bring this to the discussion list.

Let me know if the new documentation is (or is not) an improvement.

Thanks for the report!

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