format ProducerConfig.cc (#233)

Co-authored-by: yfuruta <yfuruta@yahoo-corp.jp>
diff --git a/src/ProducerConfig.cc b/src/ProducerConfig.cc
index 2be94df..5170a19 100644
--- a/src/ProducerConfig.cc
+++ b/src/ProducerConfig.cc
@@ -100,8 +100,8 @@
     int32_t maxPendingMessagesAcrossPartitions =
         producerConfig.Get(CFG_MAX_PENDING_ACROSS_PARTITIONS).ToNumber().Int32Value();
     if (maxPendingMessagesAcrossPartitions > 0) {
-      pulsar_producer_configuration_set_max_pending_messages_across_partitions(this->cProducerConfig.get(),
-                                                             maxPendingMessagesAcrossPartitions);
+      pulsar_producer_configuration_set_max_pending_messages_across_partitions(
+          this->cProducerConfig.get(), maxPendingMessagesAcrossPartitions);
     }
   }