Update docs (and sample app in wsgiref.simple_server) to reflect PEP 3333.
diff --git a/Lib/wsgiref/simple_server.py b/Lib/wsgiref/simple_server.py
index 231dc57..550f4d8 100644
--- a/Lib/wsgiref/simple_server.py
+++ b/Lib/wsgiref/simple_server.py
@@ -1,4 +1,4 @@
-"""BaseHTTPServer that implements the Python WSGI protocol (PEP 333, rev 1.21)
+"""BaseHTTPServer that implements the Python WSGI protocol (PEP 3333)
 
 This is both an example of how WSGI can be implemented, and a basis for running
 simple web applications on a local machine, such as might be done when testing
@@ -133,7 +133,7 @@
     h = sorted(environ.items())
     for k,v in h:
         print(k,'=',repr(v), file=stdout)
-    start_response(b"200 OK", [(b'Content-Type',b'text/plain; charset=utf-8')])
+    start_response("200 OK", [('Content-Type','text/plain; charset=utf-8')])
     return [stdout.getvalue().encode("utf-8")]