* also removing pointless ASCII art (tdf#62475)
* truncate ending whitespace in Doxyfile

Change-Id: I59b012f41ac0d170216229da85a49aa41689dee5
Reviewed-on: https://gerrit.libreoffice.org/35151Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>