Follow-up Comment #2, bug #64202 (project groff): I forgot to run that demonstration with all warnings enabled.
The result does not change. $ printf '\\X@ps: foo\\%%bar@\n' | troff -ww | grep 'x X' x X ps: foobar $ printf '\\X@ps: foo\\%%bar@\n' | troff -ww -z 2>&1 | grep . || echo NO ERROR NO ERROR _______________________________________________________ Reply to this item at: <https://savannah.gnu.org/bugs/?64202> _______________________________________________ Message sent via Savannah https://savannah.gnu.org/