[ISSUE #10191] Fix wrong option value for namesrvAddr parsing in timer benchmark examples (#10192)

Author: majialoong

example/src/main/java/org/apache/rocketmq/example/benchmark/timer/TimerConsumer.java

@@ -56,7 +56,7 @@ public TimerConsumer(String[] args) {
             System.exit(-1);
         }
 
-        final String namesrvAddr = commandLine.hasOption('n') ? commandLine.getOptionValue('t').trim() : "localhost:9876";
+        final String namesrvAddr = commandLine.hasOption('n') ? commandLine.getOptionValue('n').trim() : "localhost:9876";
         topic = commandLine.hasOption('t') ? commandLine.getOptionValue('t').trim() : "BenchmarkTest";
         System.out.printf("namesrvAddr: %s, topic: %s%n", namesrvAddr, topic);
 

example/src/main/java/org/apache/rocketmq/example/benchmark/timer/TimerProducer.java

@@ -74,7 +74,7 @@ public TimerProducer(String[] args) {
             System.exit(-1);
         }
 
-        final String namesrvAddr = commandLine.hasOption('n') ? commandLine.getOptionValue('t').trim() : "localhost:9876";
+        final String namesrvAddr = commandLine.hasOption('n') ? commandLine.getOptionValue('n').trim() : "localhost:9876";
         topic = commandLine.hasOption('t') ? commandLine.getOptionValue('t').trim() : "BenchmarkTest";
         threadCount = commandLine.hasOption("tc") ? Integer.parseInt(commandLine.getOptionValue("tc")) : 16;
         messageSize = commandLine.hasOption("ms") ? Integer.parseInt(commandLine.getOptionValue("ms")) : 1024;