Fix linter warnings

@@ -444,7 +444,7 @@
               };
               };
 	      
 	      
               if (entry.attributes.IV !== undefined) {
               if (entry.attributes.IV !== undefined) {
-	      	key.iv = entry.attributes.IV
+                key.iv = entry.attributes.IV;
               }
               }
             },
             },
             'media-sequence': function() {
             'media-sequence': function() {