This is getting annoying. We're getting, like, 94-95% matches
for the recent needles sometimes. Instead of continuing to make
more and more needles, let's try dropping the required match
threshold a bit. The kde-20191206 needle doesn't *seem* to be
needed so let's get rid of it.
Signed-off-by: Adam Williamson <awilliam@redhat.com>
fa062bd9bb