Print used Mapnik map scale in debug logs
Print used Mapnik map scale in debug logs

Signed-off-by: David MENTRE <3a08307e8fc56a7279f7b4cd8bf477f84433a928@linux-france.org>

maposmatic/ocitysmap,maposmatic/ocitysmap,dittaeva/ocitysmap,dittaeva/ocitysmap,maposmatic/ocitysmap