Merge pull request #1452 from ovvn/2.2

Fix typo in comments.

Author: christkv

lib/aggregation_cursor.js

@@ -82,7 +82,7 @@ var AggregationCursor = function(bson, ns, cmd, options, topology, topologyOptio
     , streamOptions: streamOptions
     // BSON
     , bson: bson
-    // Namespae
+    // Namespace
     , ns: ns
     // Command
     , cmd: cmd

lib/command_cursor.js

@@ -84,7 +84,7 @@ var CommandCursor = function(bson, ns, cmd, options, topology, topologyOptions)
     , streamOptions: streamOptions
     // BSON
     , bson: bson
-    // Namespae
+    // Namespace
     , ns: ns
     // Command
     , cmd: cmd