[mkgmap-dev] Commit r4437: perform some basic checks for invalid type/subtype in polish (.mp) input

Version mkgmap-r4437 was committed by gerd on Tue, 04 Feb 2020 perform some basic checks for invalid type/subtype in polish (.mp) input http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4437