1mandoc: invalid.in:9:1: WARNING: skipping empty request: define
2mandoc: invalid.in:15:1: WARNING: skipping empty request: define bruch
3mandoc: invalid.in:21:1: WARNING: skipping empty request: undef
4mandoc: invalid.in:27:1: WARNING: skipping empty request: tdefine
5mandoc: invalid.in:33:1: WARNING: skipping empty request: tdefine
6