commit 2a32dd2f858b90725211743199705ef98679f432
author Asim Shankar <ashankar@google.com> Fri May 29 15:45:22 2015 -0700
committer Asim Shankar <ashankar@google.com> Fri May 29 15:45:25 2015 -0700
tree 1d2ea0769f54104fd7e8337ddb30fa9a73474910
parent 3facd24462233fbbdacef8aabe0a87d14325aa5d

cmd/principal: Usability tweaks.

Prior to this commit, the command printed by "recvblessings" was
would always fail because of lack of caveats and would also
have to be edited to give a meaningful extension.

This commit changes it so that the exact command can be run successfully
- though it will generate prompts for the user to confirm the lack of
caveats and to add an extension.

For non-interactive uses, the caveat flags and the extension can
still be specified in the command-line.

Change-Id: I0c4fea11883878d776dfcc8a7dd19167e7e73a52