[mkgmap-dev] Commit r4282: fix problem introduced with r4278: --remove-ovm-work-files stopped to work when --output-dir option is used to specify a different directory

Version mkgmap-r4282 was committed by gerd on Mon, 04 Mar 2019 fix problem introduced with r4278: --remove-ovm-work-files stopped to work when --output-dir option is used to specify a different directory http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4282