原来sourceforge还有这个功能

Password Expired

Your SourceForge.net password has expired - You must now choose a new password before logging into the site.

Please enter your existing password and enter a new password below:

Old Password:

New Password (at least 6 chars):

New Password (repeat):

Please note: passwords should contain only letters and numbers. Inclusion of other characters in your password may result in inability to access some SourceForge.net systems.

嗯，不错。