[mkgmap-dev] Commit r4822: - use StandardCharsets.US_ASCII instead of "ascii" parameter where possible

Version mkgmap-r4822 was committed by gerd on Tue, 30 Nov 2021 - use StandardCharsets.US_ASCII instead of "ascii" parameter where possible - stop with error when --code-page option is not a number (instead of silently using 0) http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4822