From c1e8e964adae29a2f8e0627a53781c3d9616fade Mon Sep 17 00:00:00 2001
From: "Aaron S. Hawley" <aaron.s.hawley@gmail.com>
Date: Wed, 3 Dec 2014 14:00:49 -0500
Subject: [PATCH] Fix #28 by using TopScope instead of null

---
 src/main/scala/scala/xml/PrettyPrinter.scala | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main/scala/scala/xml/PrettyPrinter.scala b/src/main/scala/scala/xml/PrettyPrinter.scala
index 515c9c088..6fd6c7341 100755
--- a/src/main/scala/scala/xml/PrettyPrinter.scala
+++ b/src/main/scala/scala/xml/PrettyPrinter.scala
@@ -244,8 +244,8 @@ class PrettyPrinter(width: Int, step: Int) {
    *  @param pscope the namespace to prefix mapping
    *  @return      the formatted string
    */
-  def format(n: Node, pscope: NamespaceBinding = null): String =
-    sbToString(format(n, pscope, _))
+  def format(n: Node, pscope: NamespaceBinding = TopScope): String = {
+    sbToString(format(n, pscope, _)) }
 
   /**
    * Returns a formatted string containing well-formed XML.