[PATCH] win32: msvcr71.dll should be used for python 2.4 and 2.5

[Shun-ichi Goto]

# HG changeset patch
# User Shun-ichi GOTO <shunichi.goto at gmail.com>
# Date 1312781547 -32400
# Node ID 3173f07f60c5443a0c19125df1953dd8893441e3
# Parent  216d34de964afd692e08b6fa4b22748d00bce1fe
win32: msvcr71.dll should be used for python 2.4 and 2.5

Following is list of C-Runtime for versions of CPython on windows:
 - python 2.4.5 => MSVCR71.dll
 - python 2.5.4 => MSVCR71.dll
 - python 2.6.6 => MSVCR90.dll
 - python 2.7   => MSVCR90.dll
 - python 3.1.2 => MSVCR90.dll

diff -r 216d34de964a -r 3173f07f60c5 mercurial/pure/osutil.py
--- a/mercurial/pure/osutil.py	Thu Dec 09 13:40:28 2010 +0900
+++ b/mercurial/pure/osutil.py	Mon Aug 08 14:32:27 2011 +0900
@@ -73,7 +73,7 @@
             # find_msvcrt was introduced in Python 2.6
             return ctypes.util.find_msvcrt()
         except AttributeError:
-            return 'msvcr80.dll' # CPython 2.5
+            return 'msvcr71.dll' # CPython 2.5 and 2.4
 
     _crt = ctypes.PyDLL(_crtname())