tree 178785eadb0a28ec4f0b3f2e8b4e022a84f25710
parent 09c0b0dd77a5900f91b4d4cf017f83127b2e32bf
author Adam Sadovsky <asadovsky@gmail.com> 1456445883 -0800
committer Adam Sadovsky <asadovsky@gmail.com> 1456445883 -0800

chat: gosh: switch from Logf/Fatalf to TB, and related

This change makes most of the changes described in the final
proposal in https://v.io/i/1128 - namely, it makes all the
requisite API changes.

Things not done in this change:
- "Good PC" logging
- Printing Cmd stdout/stderr on failure

Those will be done in subsequent changes.

MultiPart: 7/9

Change-Id: I576f68de542ac2ed43a0ca0dd81a38bff2529efe