Patch commit 34b9721494b88f917b4e85e9262a1eb3ec3a7b85 from btcd Author: David de Kloet <dskloet@google.com> Date:   Mon Nov 21 10:04:37 2016 +0100
Patch commit 34b9721494b88f917b4e85e9262a1eb3ec3a7b85 from btcd
Author: David de Kloet <dskloet@google.com>
Date:   Mon Nov 21 10:04:37 2016 +0100

    docs: Clarify model commit message summary

    Add a paragraph about prefixing commit message summaries with the
    package/subsystem that they're changing to
    code_contribution_guidelines.md.

BitGo/prova,BitGo/prova