fix indentation in one docstring
diff --git a/Lib/xml/sax/expatreader.py b/Lib/xml/sax/expatreader.py
index f7517b1..bd3a467 100644
--- a/Lib/xml/sax/expatreader.py
+++ b/Lib/xml/sax/expatreader.py
@@ -39,7 +39,7 @@
     # XMLReader methods
 
     def parse(self, stream_or_string ):
-	"Parse an XML document from a URL."
+        "Parse an XML document from a URL."
         if type( stream_or_string ) == type( "" ):
             stream=open( stream_or_string )
         else: