This is done mainly to avoid problems with trailing whitespace in the
generated Python code as this provokes pep8 problems, but is also, arguably,
more logical, as if a command which is on its own on a line is ignored, we
shouldn't leave any whitespace neither (and perhaps should even suppress the
line entirely, in fact).
Add %feature("doxygen:ignore:<command>") implementation, documentation and
test case.
This feature allows to use custom tags in C++ Doxygen comments for
C++-specific things that don't make sense in the context of the target
language and also allows to insert contents specific to the target language in
the C++ comments using (different) custom commands, which is very useful in
practice to explain the particularities of the API wrappers.
