allowing output comparison, and it turns out mandoc output is actually better than groff output because mandoc treat the invalid font \fC as roman, while groff simply ignores the escape sequence. So, drop USE_GROFF and bump.
allowing output comparison, and it turns out mandoc output is actually better than groff output because mandoc treat the invalid font \fC as roman, while groff simply ignores the escape sequence. So, drop USE_GROFF and bump.