$ sh -c "( cd ~/src/cirros/cirros && git log 0.3.4..0.3.5 )"
commit 2f3ffa6a41e4e85e6b2e59f483c1727fe9d60ac8 (tag: f0223044949346c811845e6d257b16e8d54c41ac, tag: 0.3.5)
Author: Scott Moser <smoser@brickies.net>
Date:   Tue Feb 14 11:55:46 2017 -0500

    bin/mirror-dump-sstream-data: update for git
    
    Update this release data script to support git.

commit f0223044949346c811845e6d257b16e8d54c41ac (smoser/0.3)
Author: Scott Moser <smoser@brickies.net>
Date:   Thu Feb 9 00:43:37 2017 +0000

    Grab some functionality from master for building with git.  Update doc.
    
    The only things of real importance here are:
     * adjust bin/build-release so it works with git.
     * bin/system-setup: copy from master, change to insist on 12.04
       for 0.3 builds.
     * create-release.txt doc updates.

commit e79e675778b66c5b0f2fe09e42c5948dc01fdd76
Author: Scott Moser <smoser@brickies.net>
Date:   Wed Feb 1 09:17:37 2017 -0500

    dropbear script cleanups for 0.3
    
     - DROPBEAR_ARGS: do not use -R, which is not available in dropbear
       version included in cirros 0.3
     - fix one usage of the non-posix &> operator, replacing with >file 2>&1
     - generate dropbear key to a temporary file and move it into place
       rather than operating on the file itself. This ensures the
       file appears atomically or not at all.
    
    LP: #1564948

commit 093f907ecd117fd23c70180d4f13b7b89952204d
Author: Hugh Saunders <hugh@cb.uk.rs.wherenow.org>
Date:   Wed Jun 29 09:23:44 2016 -0400

    Ensure dropbear will start even if keyfiles are empty.
    
    Copy the dropbear init script inside cirros rather than
    patching it.  That makes this easier to read.
    
    LP: #1564948