diff --git a/Lib/StringIO.py b/Lib/StringIO.py
index b8cba32..bdf11cc 100644
--- a/Lib/StringIO.py
+++ b/Lib/StringIO.py
@@ -37,16 +37,16 @@
 __all__ = ["StringIO"]
 
 class StringIO:
-    """class StringIO([buffer]) 
-    
+    """class StringIO([buffer])
+
     When a StringIO object is created, it can be initialized to an existing
     string by passing the string to the constructor. If no string is given,
-    the StringIO will start empty. 
+    the StringIO will start empty.
 
     The StringIO object can accept either Unicode or 8-bit strings, but
     mixing the two may take some care. If both are used, 8-bit strings that
     cannot be interpreted as 7-bit ASCII (that use the 8th bit) will cause
-    a UnicodeError to be raised when getvalue() is called. 
+    a UnicodeError to be raised when getvalue() is called.
     """
     def __init__(self, buf = ''):
         # Force self.buf to be a string or unicode
@@ -63,7 +63,7 @@
         return iter(self.readline, '')
 
     def close(self):
-        """Free the memory buffer. 
+        """Free the memory buffer.
         """
         if not self.closed:
             self.closed = 1
@@ -186,7 +186,7 @@
         but mixing the two may take some care. If both are used, 8-bit
         strings that cannot be interpreted as 7-bit ASCII (that use the
         8th bit) will cause a UnicodeError to be raised when getvalue()
-        is called. 
+        is called.
         """
         if self.buflist:
             self.buf += ''.join(self.buflist)