Fix trailing whitespace in elasticsearch-optional feature

Author: HuiJun

cws-installer/src/main/java/jpl/cws/task/CwsInstaller.java

@@ -1289,7 +1289,7 @@ private static void setupElasticsearch() {
 		if (cws_installer_mode.equals("interactive")) {
 			if (elasticsearch_protocol == null) {
 				String read_elasticsearch_protocol = readLine("Enter the Elasticsearch protocol (HTTP/HTTPS) or press Enter to skip Elasticsearch setup: ", "");
-				
+
 				// Allow user to skip Elasticsearch setup
 				if (read_elasticsearch_protocol == null || read_elasticsearch_protocol.trim().isEmpty()) {
 					log.info("Elasticsearch setup skipped by user");
@@ -3395,7 +3395,7 @@ private static void installLogstash() throws IOException {
 		print(" Skipping Logstash installation (Elasticsearch not configured)");
 		return;
 	}
-	
+
 	// UNZIP / INSTALL / SETUP  LOGSTASH
 	String logstashZipFilePath = cws_server_root + SEP + "logstash-" + logstash_ver + ".zip";
 	String logstashDestDirectory = cws_server_root;