[TASK] Clarify usage of releaseExtension

core/tasks/releaseExtension.js

@@ -17,7 +17,7 @@ module.exports = class Open extends Task {
 	async run() {
 		return new Promise(async resolve => {
 			if (typeof yargs.ext === 'undefined') {
-				this._logger.error('Please specify the extension you want to release!');
+				this._logger.error('Please specify the extension you want to release ("--ext" parameter)!');
 				resolve();
 			} else if (!fs.existsSync(`${this._config.directories.basePath}${yargs.ext}`)) {
 				this._logger.error(`Could not find extension in ${yargs.ext}!`);