Modify a certain user.
You shouldn't modify the password with this method, use File_Passwd_Smb::changePasswd() instead.
the user to modify
an associative array of properties to change
Returns TRUE on success, PEAR_Error on failure.
Table 43-1. Possible PEAR_Error values
|FILE_PASSWD_E_EXISTS_NOT||account doesn't exist|
|FILE_PASSWD_E_INVALID_PROPERTY||any supplied property was invalid|