Comment #5 on issue 675 by pekka.klarck: DryRun should support `Import Library` keyword
http://code.google.com/p/robotframework/issues/detail?id=675
You could try changing `_RunnableHandler` class in robot/running/handlers.py [1]. It has `_dry_run` method, where you probably could do something special if `self._name_name == 'import_library'`. I'm not sure is that the best approach, but would give an idea is this possible at all.
[1] http://code.google.com/p/robotframework/source/browse/trunk/src/robot/running/handlers.py
