[ISSUE #5692] Polish Controller headers toString (#5693)

remoting/src/main/java/org/apache/rocketmq/remoting/protocol/body/BrokerMemberGroup.java

@@ -88,4 +88,13 @@ public class BrokerMemberGroup extends RemotingSerializable {
     public int hashCode() {
         return Objects.hashCode(cluster, brokerName, brokerAddrs);
     }
+
+    @Override
+    public String toString() {
+        return "BrokerMemberGroup{" +
+            "cluster='" + cluster + '\'' +
+            ", brokerName='" + brokerName + '\'' +
+            ", brokerAddrs=" + brokerAddrs +
+            '}';
+    }
 }

remoting/src/main/java/org/apache/rocketmq/remoting/protocol/header/controller/CleanControllerBrokerDataRequestHeader.java

@@ -91,9 +91,9 @@ public class CleanControllerBrokerDataRequestHeader implements CommandCustomHead
     public String toString() {
         return "CleanControllerBrokerDataRequestHeader{" +
             "clusterName='" + clusterName + '\'' +
-            "brokerName='" + brokerName + '\'' +
-            "brokerAddress='" + brokerAddress + '\'' +
-            "isCleanLivingBroker='" + isCleanLivingBroker + '\'' +
+            ", brokerName='" + brokerName + '\'' +
+            ", brokerAddress='" + brokerAddress + '\'' +
+            ", isCleanLivingBroker=" + isCleanLivingBroker +
             '}';
     }
 }

remoting/src/main/java/org/apache/rocketmq/remoting/protocol/header/controller/ElectMasterRequestHeader.java

@@ -72,8 +72,8 @@ public class ElectMasterRequestHeader implements CommandCustomHeader {
     public String toString() {
         return "ElectMasterRequestHeader{" +
             "clusterName='" + clusterName + '\'' +
-            "brokerName='" + brokerName + '\'' +
-            "brokerAddress='" + brokerAddress + '\'' +
+            ", brokerName='" + brokerName + '\'' +
+            ", brokerAddress='" + brokerAddress + '\'' +
             '}';
     }
 

remoting/src/main/java/org/apache/rocketmq/remoting/protocol/header/controller/ElectMasterResponseHeader.java

@@ -67,7 +67,7 @@ public class ElectMasterResponseHeader implements CommandCustomHeader {
             "newMasterAddress='" + newMasterAddress + '\'' +
             ", masterEpoch=" + masterEpoch +
             ", syncStateSetEpoch=" + syncStateSetEpoch +
-            ", brokerMember=" + brokerMemberGroup +
+            ", brokerMemberGroup=" + brokerMemberGroup +
             '}';
     }