By default, if DESCRIPTION is not set it takes the value of SUMMARY.
However, within this tool it is useful for us to be able to tell when
DESCRIPTION has not been set so we want it to be blank if that is the
case.
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
The default value of HOMEPAGE ('unknown', set from bitbake.conf) is not
particularly helpful - we want it to be blank if it's not set, so just
set it to blank before parsing each recipe.
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>