Updated the Renderer.__init__() docstring.

pystache/renderer.py

@@ -48,9 +48,8 @@ class Renderer(object):
             as a unicode string.  If there is no template with that name,
             the method should either return None (as dict.get() does) or
             raise an exception.
-                Defaults to constructing a Loader instance with
-            default_encoding and decode_errors passed as the encoding and
-            decode_errors arguments, respectively.
+                Defaults to constructing a default Loader, but using the
+            default_encoding and decode_errors arguments.
 
           escape: the function used to escape variable tag values when
             rendering a template.  The function should accept a unicode