[SQL]typo in HiveFromSpark

Author: Kun Li <jacky.likun@gmail.com>

Closes #2809 from jackylk/patch-1 and squashes the following commits:

46c926b [Kun Li] typo in HiveFromSpark

examples/src/main/scala/org/apache/spark/examples/sql/hive/HiveFromSpark.scala

@@ -28,7 +28,7 @@ object HiveFromSpark {
     val sparkConf = new SparkConf().setAppName("HiveFromSpark")
     val sc = new SparkContext(sparkConf)
 
-    // A local hive context creates an instance of the Hive Metastore in process, storing the
+    // A local hive context creates an instance of the Hive Metastore in process, storing 
     // the warehouse data in the current directory.  This location can be overridden by
     // specifying a second parameter to the constructor.
     val hiveContext = new HiveContext(sc)