[mkgmap-dev] Commit r4136: fix missing img file in gmapsupp when --max-jobs option is not given

Version mkgmap-r4136 was committed by gerd on Tue, 13 Mar 2018 fix missing img file in gmapsupp when --max-jobs option is not given http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4136