addSwitchWithOptionalExtraPart("-getRevisionNamesFromFilenames", "truth", "generate revision names for each version from filenames");
addSwitchWithOptionalExtraPart("-overrideRevisionNames", "truth", "override revision names for each version with names computed filenames");
		UpdateCommandLine() {			addSwitchWithOptionalExtraPart("-getRevisionNamesFromFilenames", "truth",			"generate revision names for each version from filenames");			addOption("-output", "output file",					"explicit filename for merged results (use - for standard out)");			}