mandoc: invalid.in:9:1: WARNING: skipping empty request: define mandoc: invalid.in:15:1: WARNING: skipping empty request: define bruch mandoc: invalid.in:21:1: WARNING: skipping empty request: undef mandoc: invalid.in:27:1: WARNING: skipping empty request: tdefine mandoc: invalid.in:33:1: WARNING: skipping empty request: tdefine