[bug #63354] Refine fallbacks.tmac

[Dave]

Follow-up Comment #25, bug #63354 (project groff):

If fallbacks.tmac gets tweaked before 1.23 (or perhaps even before rc2), one
more trivial change I'd recommend.  Two lines in the file currently read:

.\" \[u2010] is always defined thanks to uniglyph.cpp.
.\"fchar \[u2010] -\:\" hyphen

The first of these lines is worthwhile, in case someone comes along later and
is tempted to add a \[u2010] definition.  But the second seems misleading:
point (b) of comment #8 illustrates that even were the uniglyph.cpp definition
removed or circumvented, the fchar here wouldn't do what was intended.  So
it's a little dubious to put it in a shipped .tmac file, even in commented
form, as it implies to anyone reading the code that the construction _could_
work.

So my preference would be to see the second line removed entirely.  But this
is certainly not a blocker, since it's inactive code.


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