MINOR: Fix incorrect references to the max transaction timeout config (#4664)

clients/src/main/java/org/apache/kafka/clients/producer/ProducerConfig.java

@@ -212,7 +212,7 @@ public class ProducerConfig extends AbstractConfig {
     /** <code> transaction.timeout.ms </code> */
     public static final String TRANSACTION_TIMEOUT_CONFIG = "transaction.timeout.ms";
     public static final String TRANSACTION_TIMEOUT_DOC = "The maximum amount of time in ms that the transaction coordinator will wait for a transaction status update from the producer before proactively aborting the ongoing transaction." +
-            "If this value is larger than the max.transaction.timeout.ms setting in the broker, the request will fail with a `InvalidTransactionTimeout` error.";
+            "If this value is larger than the transaction.max.timeout.ms setting in the broker, the request will fail with a `InvalidTransactionTimeout` error.";
 
     /** <code> transactional.id </code> */
     public static final String TRANSACTIONAL_ID_CONFIG = "transactional.id";

clients/src/main/java/org/apache/kafka/common/errors/InvalidTxnTimeoutException.java

@@ -18,7 +18,7 @@ package org.apache.kafka.common.errors;
 
 /**
  * The transaction coordinator returns this error code if the timeout received via the InitProducerIdRequest is larger than
- * the `max.transaction.timeout.ms` config value.
+ * the `transaction.max.timeout.ms` config value.
  */
 public class InvalidTxnTimeoutException extends ApiException {
     private static final long serialVersionUID = 1L;

clients/src/main/java/org/apache/kafka/common/protocol/Errors.java

@@ -474,7 +474,7 @@ public enum Errors {
             }
         }),
     INVALID_TRANSACTION_TIMEOUT(50, "The transaction timeout is larger than the maximum value allowed by " +
-                "the broker (as configured by max.transaction.timeout.ms).",
+                "the broker (as configured by transaction.max.timeout.ms).",
         new ApiExceptionBuilder() {
             @Override
             public ApiException build(String message) {