Expose the author time from the GitCommit object.

Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
Print bootstrap information directly from the identified commit.

Emit the commit information using the same style as git log but avoiding
the cost of executing a git subprocess.

Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
Merge pull request #449 from patthoyts/pt/bootstrap

Drop git log call when doing bootstrap