Fix test errors.

Lib/test/output/test_minidom

@@ -82,8 +82,6 @@ Test Succeeded testParseElement
 Test Succeeded testParseElementNamespaces
 Passed Test
 Test Succeeded testParseFromFile
-Garbage left over:
-258
 Test Succeeded testParseProcessingInstructions
 Test Succeeded testParseString
 Test Succeeded testProcessingInstruction

Lib/test/test_minidom.py

@@ -26,6 +26,7 @@ Node._debug=1
 def testParseFromFile():
     from StringIO import StringIO
     dom=parse( StringIO( open( tstfile ).read() ) )
+    dom.unlink()
     confirm(isinstance(dom,Document))
 
 def testGetElementsByTagName( ):