mandoc: twoarg.in:3:5: BASE: operating system explicitly specified: Os OpenBSD (OpenBSD)
mandoc: twoarg.in:1:5: BASE: Mdocdate missing: Dd November (OpenBSD)
mandoc: twoarg.in:16:5: WARNING: invalid Boolean argument: Sm bad
mandoc: twoarg.in: BASE: RCS id missing: (OpenBSD)