the case-sensitiveness of the "accept all options" prompt (and the fact
it silently defaults to no) was confusing a few users, so by rewording
it slightly we can avoid that case-sensitiveness and make the prompt
clearer. for consistency, i also rewrote the individual accept prompt to
make it case-insensitive.
at reviewers' requests, i also reworked the code so it re-prompts the
user on invalid answers.
Change-Id: Ie786c0f26a0aa752b22d5a5e8af1b2c7ca2846b5
blokyk
0cad504c8a