Add i18n support to function get_archives()

[yskins]

In english, we use the format like "January 2006" in archive list. But in chinese, we often use the format like "2006-1".
Can you replace line 339 and line 342 in /wp-includes/template-functions-general.php to:

$text = sprintf(__('%s %d'), $month[zeroise($arcresult->month,2)], $arcresult->year);

So I can translate '%s %d' into '%2$d-%1$s' in my po file.

I'm using WordPress 2.0.5

same to #1540