Improve code quality and write tests

node_modules/argv/test/test-version.js

@@ -0,0 +1,12 @@
+munit( 'Root.version', { priority: munit.PRIORITY_LOW }, function( assert ) {
+	argv.clear();
+	if ( argv.options.version ) {
+		delete argv.options.version;
+	}
+
+	assert.empty( 'Version Start', argv.options.version );
+	argv.version( "1.2.4" );
+	assert.exists( 'Version Option', argv.options.version );
+	argv.clear();
+	assert.exists( 'Version Option after Clear', argv.options.version );
+});