undocumented return values from passwd

[Zugschlus]

Hi!

passwd returns exit code 10 which is not defined in the manual page.

[2/5164]mh@swivel:~ $ passwd
Changing password for mh.
Current password:
passwd: Authentication token manipulation error
passwd: password unchanged
10 [3/5165]mh@swivel:~ $ passwd
Changing password for mh.
Current password:
New password:
Retype new password:
Sorry, passwords do not match.
passwd: Authentication token manipulation error
passwd: password unchanged
10 [4/5165]mh@swivel:~ $

passwd(1) only documens exit codes 1 through 6.

Please also consider giving distinct exit codes for "current password entered wrong" and "password repeat doesnt match".

Greetings
Marc