Putting a box around the simulated screenshot has a side-effect of
forcing it to the next page if there isn't room on the current page.
And it looks at least as good as the old top and bottom horizontal
lines, if not better. This also eliminates the blank left-most
column (relative to those lines) which isn't part of the screenshot.
There are issues:
1) for Guidebook.ps, the "Figure 1" label underneath seems to be
too close to the box; I didn't try to force a blank line in front
of it because that increases the risk of pushing it to the next
page if the figure lands at the bottom;
2) for Guidebook.txt, the "Figure 1" label actually overwrites the
bottom line of the box, and the embedded space allows the line
to show through: "---Figure-1---"; I tried using "\ Figure\ 1\ "
to see if that might hide the issue by making it seem that the
label in intended to be on that line, but it didn't help--
unbreakable-space evidently does not imply always-visible-space;
3) the box is one column wider than the rest of the document (the
previous horizontal lines were two or three columns wider, so
this is actually a tiny imrovement); squeezing out some whitespace
to make the status lines narrower didn't help--or at least not
enough; squeezing some spaces was needed to match STATUS_HILITES-
era status formatting anyway.
4] if there was a footnote (we have some for trademarks) on the same
page as the screenshot, either the footnote or the table would
probably become confused, perhaps both. I think we just pretend
that that will never come up....
5} I've made no attempt to alter Guidebook.tex to try to match.
I'm throwing in the towel. Fixing this up is way beyond my limited
'roff/tbl capability. (There's probably a much more straightforward
way to achieve what we want.)
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