When I just press the "enter" key when passwd prompts for new
password, I should get re-prompted 3 times. Instead, it reprompts only
once for FC 6.
How to change passwd's behavior so that it will re-prompt 3 times?

# adduser admin
# passwd admin
Changing password for user admin.
New UNIX password:
BAD PASSWORD: it is WAY too short
Retype new UNIX password:
No password supplied
No password supplied
No password supplied
passwd: Authentication token manipulation error

# uname -a
Linux tulip 2.6.18-1.2798.fc6 #1 SMP Mon Oct 16 14:54:20 EDT 2006 i686
i686 i386 GNU/Linux