tree printer BUGFIX submodule does not have any data anymore
tree printer BUGFIX submodule does not have any data anymore

So, if printing module, print it with any submodules,
but when printint a submodule, print only it and
nothing else (even if it has includes, we're following
YANG 1.1 where includes are ignored, assumed actually).

PavolVican/libyang,PavolVican/libyang,lukasmacko/libyang,PavolVican/libyang,lukasmacko/libyang,PavolVican/libyang,PavolVican/libyang