formatting related fixes suggested by Patrick.

core/src/main/scala/org/apache/spark/SparkConf.scala

@@ -173,11 +173,7 @@ class SparkConf(loadDefaults: Boolean) extends Serializable with Cloneable with
   }
 
   /** Get all akka conf variables set on this SparkConf */
-  def getAkkaConf: Seq[(String, String)] = {
-    getAll.filter {
-      case (k, v) => k.startsWith("akka.")
-    }
-  }
+  def getAkkaConf: Seq[(String, String)] =  getAll.filter {case (k, v) => k.startsWith("akka.")}
 
   /** Does the configuration contain a given parameter? */
   def contains(key: String): Boolean = settings.contains(key)

docs/configuration.md

@@ -364,7 +364,7 @@ Apart from these, the following properties are also available, and may be useful
   <td>akka.x.y....</td>
   <td>value</td>
   <td>
-    An arbitrary akka configuration can be set directly on spark conf and it is applied for all the ActorSystems created spark wide for that spark context and its assigned executors as well.
+    An arbitrary akka configuration can be set directly on spark conf and it is applied for all the ActorSystems created spark wide for that SparkContext and its assigned executors as well.
   </td>
 </tr>