Add a link to Guido's approval, and fix some broken links.

pep-0389.txt

@@ -11,6 +11,11 @@ Python-Version: 2.7 and 3.2
 Post-History: 27-Sep-2009, 24-Oct-2009
 
 
+Acceptance
+==========
+This PEP was approved by Guido on python-dev on February 21, 2010 [17]_.
+
+
 Abstract
 ========
 This PEP proposes inclusion of the argparse [1]_ module in the Python
@@ -263,10 +268,10 @@ References
    (http://mail.scipy.org/pipermail/ipython-dev/2009-April/005102.html)
 
 .. [5] argparse in Debian
-   (http://packages.debian.org/search?keywords=python-argparse)
+   (http://packages.debian.org/search?keywords=argparse)
 
 .. [6] 2007-01-03 request for argparse in the standard library
-   (http://mail.python.org/pipermail/python-list/2007-January/592646.html)
+   (http://mail.python.org/pipermail/python-list/2007-January/472276.html)
 
 .. [7] 2009-06-09 request for argparse in the standard library
    (http://bugs.python.org/issue6247)
@@ -275,7 +280,7 @@ References
    (http://mail.python.org/pipermail/stdlib-sig/2009-September/000342.html)
 
 .. [9] Fredrik Lundh response to [6]_
-   (http://mail.python.org/pipermail/python-list/2007-January/592675.html)
+   (http://mail.python.org/pipermail/python-list/2007-January/1086892.html)
 
 .. [10] optparse variable args
    (http://docs.python.org/library/optparse.html#callback-example-6-variable-arguments)
@@ -298,6 +303,8 @@ References
 .. [16] Benjamin Peterson's %-to-{} converter
    (http://bazaar.launchpad.net/~gutworth/+junk/mod2format/files)
 
+.. [17] Guido's approval
+   (http://mail.python.org/pipermail/python-dev/2010-February/097839.html)
 
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 =========