[mkgmap-dev] Commit r3972: fix parsing of config file for --road-name-config option.

Version mkgmap-r3972 was committed by gerd on Mon, 12 Jun 2017 fix parsing of config file for --road-name-config option. Some blanks were not ignored and therefore nonsense prefixes were generated. http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=3972