static private String getAgentString() {
		if (agent == null) {
			String version = System.getProperty("java.version") + "/"
					+ System.getProperty("java.vm.vendor", "<unknown>");
			agent = "JBang/" + getJBangVersion() + " (" + System.getProperty("os.name") + "/"
					+ System.getProperty("os.version") + "/" + System.getProperty("os.arch") + ") " + "Java/" + version;
		}
		return agent;
	}
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src/main/java/dev/jbang/util/Util.java