We don't ship nroff(1) anymore, so adapt ching(6) to support to use mandoc(1) to format its output. Mandoc(1) only implements part of roff(7) language, but it's enough for ching(6), although minor adjustments to the mandoc(1) output are needed to make it similar to the nroff(1) output.
Prefer nroff(1) if it's available (provided by groff package).
169b629f5b ching(6): Support to format with mandoc(1)
games/ching/ching/ching.sh | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)