PR: MPCHANGES-32

The encoding of the changes.xml file is not preserved after doing release-version.
New property maven.changes.outputencoding.

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@434555 13f79535-47bb-0310-9956-ffa450edef68

changes/src/main/org/apache/maven/changes/ReleaseVersion.java

@@ -120,7 +120,18 @@ public class ReleaseVersion
         format.setIndentSize( 2 );
         format.setNewlines( true );
         format.setTrimText( true );
-        format.setEncoding( encoding );
+        if ( encoding == null || "".equals( encoding ) )
+        {
+            String docsEncoding = doc.getXMLEncoding();
+            if ( docsEncoding != null )
+            {
+                format.setEncoding( docsEncoding );
+            }
+        }
+        else
+        {
+            format.setEncoding( encoding );
+        }
 
         XMLWriter writer = new XMLWriter( format );
         writer.setOutputStream( os );