mandoc: invalid.in:9:2: WARNING: skipping empty request: define
mandoc: invalid.in:15:2: WARNING: skipping empty request: define bruch
mandoc: invalid.in:21:2: WARNING: skipping empty request: undef
mandoc: invalid.in:27:2: WARNING: skipping empty request: tdefine
mandoc: invalid.in:33:2: WARNING: skipping empty request: tdefine
mandoc: invalid.in:3:5: BASE: operating system explicitly specified: Os OpenBSD (OpenBSD)
mandoc: invalid.in:1:5: BASE: Mdocdate missing: Dd January (OpenBSD)
mandoc: invalid.in: BASE: RCS id missing: (OpenBSD)