- Print out "Bail out!" in die(..) so prove terminates immediately
- Handle the output from newer versions of openssl md5, similar to what
  pjd@ did in r248304

MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division


git-svn-id: svn+ssh://svn.freebsd.org/base/head@273627 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f