[bug #68555] [PATCH] [troff] ASAN runtime error: 1-byte heap overread in `print_hyphenation_exceptions_request()`

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Update of bug #68555 (group groff):=0A=0A                  Status:         =
    In Progress =3D> Fixed=0A             Open/Closed:                    O=
pen =3D> Closed=0A=0A    __________________________________________________=
_____=0A=0AFollow-up Comment #4:=0A=0A=0Acommit 9e7f0a9836535bc2e1d96073170=
ef0619ab5c4e1=0AAuthor: G. Branden Robinson <[email protected]>=
=0ADate:   Fri Jul 24 02:30:16 2026 -0500=0A=0A    [troff]: Fix Savannah #6=
8555.=0A    =0A    * src/roff/troff/env.cpp (print_hyphenation_exceptions_r=
equest): When=0A      the "phw-request-works.sh" test script ran under suff=
iciently=0A      aggressive memory debugging, it failed.  Fix 1-byte heap o=
verread when=0A      a hyphenation word supplied by a hyphenation exception=
s word list=0A      (contrast those defined by the `hw` request) has no hyp=
henation points=0A      at all.=0A    =0A    Fixes <https://savannah.gnu.or=
g/bugs/?68555>.  Problem introduced by me=0A    in commit 0b40885e71, 2023-=
11-03.=0A=0A=0A=0A=0A    __________________________________________________=
_____=0A=0AReply to this item at:=0A=0A  <https://savannah.gnu.org/bugs/?68=
555>=0A=0A_______________________________________________=0AMessage sent vi=
a Savannah=0Ahttps://savannah.gnu.org/=0A
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