minor hyphenation issue

[Dave Kemper]

Do cases of mishandled hyphenation rise to the level of a bug that
should be reported in the bug tracker?  I've run across a couple such
words.  One example is "backpedaling" (or its UK spelling,
"backpedalling"), illustrated in this small groff file:

.ll 1.55i
Last year we went backpacking across Europe.
.br
Last year we went backpedaling across Europe.

Both words have a syllable break after "back-," but groff utilizes
only the one in "backpacking."  This happens on a groff built from the
latest sources in git.

The .hw request provides an easy workaround, of course, but groff
ought to handle this word without the user having to specify a special
case.

Thanks for your input.