mention RFC1123 as origin of 4-year digit; thanks to John Haxby from docs@

diff --git a/Doc/library/time.rst b/Doc/library/time.rst
index d6efcee47d1cd96de6ddfa48628289947efc87de..18a8bc69898e94e3b4fe870ede494fdbdd7a513c 100644 (file)
--- a/Doc/library/time.rst
+++ b/Doc/library/time.rst
@@ -560,6 +560,6 @@ The module defines the following functions and data items:
    preferred  hour/minute offset is not supported by all ANSI C libraries. Also, a
    strict reading of the original 1982 :rfc:`822` standard calls for a two-digit
    year (%y rather than %Y), but practice moved to 4-digit years long before the
-   year 2000.  The 4-digit year has been mandated by :rfc:`2822`, which obsoletes
-   :rfc:`822`.
+   year 2000.  After that, :rfc:`822` became obsolete and the 4-digit year has
+   been first recommended by :rfc:`1123` and then mandated by :rfc:`2822`.