Upgrade librdkafka to 0.11.4

Stephen Parente · Stephen Parente · commit 844dee16e57b · 2018-03-27T09:41:45.000-07:00
diff --git a/README.md b/README.md
@@ -12,7 +12,7 @@ Copyright (c) 2016 Blizzard Entertainment.
 
 The `node-rdkafka` library is a high-performance NodeJS client for [Apache Kafka](http://kafka.apache.org/) that wraps the native  [librdkafka](https://github.com/edenhill/librdkafka) library.  All the complexity of balancing writes across partitions and managing (possibly ever-changing) brokers should be encapsulated in the library.
 
-__This library currently uses `librdkafka` version `0.11.3`.__
+__This library currently uses `librdkafka` version `0.11.4`.__
 
 ## Reference Docs
 
diff --git a/deps/librdkafka b/deps/librdkafka
@@ -1 +1 @@
-Subproject commit b581d0d9df282847f76e8b9e87337161959d39c9
+Subproject commit 6c722e5d411882283e5687b3e214075804e782ae
