Issue #28763: Use double hyphens (rendered as en-dashes) in numerical ranges
in the documentation.
diff --git a/Doc/howto/urllib2.rst b/Doc/howto/urllib2.rst
index d2c7991..712b4b7 100644
--- a/Doc/howto/urllib2.rst
+++ b/Doc/howto/urllib2.rst
@@ -240,8 +240,8 @@
~~~~~~~~~~~
Because the default handlers handle redirects (codes in the 300 range), and
-codes in the 100-299 range indicate success, you will usually only see error
-codes in the 400-599 range.
+codes in the 100--299 range indicate success, you will usually only see error
+codes in the 400--599 range.
:attr:`http.server.BaseHTTPRequestHandler.responses` is a useful dictionary of
response codes in that shows all the response codes used by RFC 2616. The