Date of new message

Some time ago i wrote about problem of non-english locale.
New mail with date creates in my locale(Russian).
But rfc822 says: day should be  Mon,Tue,Wed,Thu,Fri,Sat,Sun
        and month: Jan,Feb,Mar,Apr...
Your mail client will not be able to analize  message date created on my 
machine, because he doesn't not understand russian :)
I make some changes in Mail/Message/Field.pm:

diff Mail/Message/Field.pm Mail.new/Message/Field.pm
167c167,169
<     use POSIX 'strftime';
---
>     use POSIX qw/strftime setlocale/;
>     my $old_locale = setlocale('LC_CTYPE');
>     setlocale('LC_CTYPE', "C");
169c171,173
<     strftime "%a, %d %b %Y %H:%M:%S %z", @time;
---
>     my $strtime=strftime "%a, %d %b %Y %H:%M:%S %z", @time;
>     setlocale('LC_TYPE',$old_locale);
>     $strtime;