[mkgmap-dev] Commit r4276: Print useful message when no input file was given

Version mkgmap-r4276 was committed by gerd on Wed, 13 Feb 2019 Print useful message when no input file was given Without that check we may see nonsense like this: java -jar d:\mkgmap\dist\mkgmap.jar --gmapi Time started: Wed Feb 13 15:04:21 CET 2019 Options --gmapi and --no-tdbfiles are mutually exclusive Number of ExitExceptions: 1 Time finished: Wed Feb 13 15:04:21 CET 2019 Total time taken: 33 ms http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4276