When using the perf command, the incoming topic name does not have tr…

…im, which may cause the parsed topic name to contain spaces. When automatic topic creation is enabled, topics with spaces will also be automatically created (apache#12453)

pulsar-testclient/src/main/java/org/apache/pulsar/testclient/PerformanceConsumer.java

@@ -212,7 +212,7 @@ public static void main(String[] args) throws Exception {
         if (arguments.topic != null && arguments.topic.size() != arguments.numTopics) {
             // keep compatibility with the previous version
             if (arguments.topic.size() == 1) {
-                String prefixTopicName = TopicName.get(arguments.topic.get(0)).toString();
+                String prefixTopicName = TopicName.get(arguments.topic.get(0)).toString().trim();
                 List<String> defaultTopics = Lists.newArrayList();
                 for (int i = 0; i < arguments.numTopics; i++) {
                     defaultTopics.add(String.format("%s-%d", prefixTopicName, i));