* dispass.el (dispass-default-length): Add default length to pass
along to DisPass setting.
(dispass-create): Use `dispass-default-length' when LENGTH is
empty.
By using `defgroup' and `defcustom' the variable (and possible later
variables) can be changed through Emacs' extensive customization
interface.
M-x customize-group <RET> dispass <RET>
Will show you the variables that can be changed for dispass.el.
Using a numeric prefix argument when calling either `dispass' or
`dispass-create' will invoke dispass with the -l switch to cut
passwords down to a certain size.