[MINOR] Simple logging fix in LockManager (#6765)

Co-authored-by: 苏承祥 <[email protected]>

Author: scxwhite

hudi-client/hudi-client-common/src/main/java/org/apache/hudi/client/transaction/lock/LockManager.java

@@ -72,7 +72,7 @@ public void lock() {
           Thread.sleep(maxWaitTimeInMs);
         } catch (HoodieLockException | InterruptedException e) {
           if (retryCount >= maxRetries) {
-            throw new HoodieLockException("Unable to acquire lock, lock object ", e);
+            throw new HoodieLockException("Unable to acquire lock, lock object " + lockProvider.getLock(), e);
           }
           try {
             Thread.sleep(maxWaitTimeInMs);