split yesno() into yesno() and noyes() functions.
The yesno function had a preset argument for specifying the default answer :
yes or no.
However, in all our calls to yesno, only one used the default "no" answer.
Having to specify preset==1 for all the other cases was rather cumbersome.
To make this easier, this commit adds a noyes function, with the following
behavior :
yesno() : default answer is yes
noyes() : default answer is no
Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>