Quick workaround for this problem:
sudo mkdir -p /usr/share/sane/xsane sudo ln -t /usr/share/sane/xsane /usr/share/doc/xsane-common/*.pnm /usr/share/doc/xsane-common/*.rc /usr/share/doc/xsane-common/*.xpm
I do not know how many of those files are actually needed in /usr/share/sane/xsane but “it works for me”.
Quick workaround for this problem:
sudo mkdir -p /usr/share/ sane/xsane sane/xsane /usr/share/ doc/xsane- common/ *.pnm /usr/share/ doc/xsane- common/ *.rc /usr/share/ doc/xsane- common/ *.xpm
sudo ln -t /usr/share/
I do not know how many of those files are actually needed in /usr/share/ sane/xsane but “it works for me”.