Otherwise the sgml-docbook.cat catalog would not be updated when a build
from sstate cache is run.
Signed-off-by: Scott Garman <scott.a.garman@intel.com>
These are recipes for DTDs commonly used when generating
documentation for free software. Recipes dervied from the
versions in OpenEmbedded.
Signed-off-by: Scott Garman <scott.a.garman@intel.com>