mandoc: invalid.in:10:2: WARNING: skipping empty request: define mandoc: invalid.in:16:2: WARNING: skipping empty request: define bruch mandoc: invalid.in:22:2: WARNING: skipping empty request: undef mandoc: invalid.in:28:2: WARNING: skipping empty request: tdefine mandoc: invalid.in:34:2: WARNING: skipping empty request: tdefine