acid: source: Summarize commit we are building from

For the sake of the logs, print out the oneline summary of the commit we
deemed to be the latest available for deployment.

The `git checkout "$next"` command that is run just a couple lines up
would also display this information if we didn't redirect it to
/dev/null.  However, it also produces other noisy output such as the
"You are in detached HEAD state" message or "Leaving X commits behind"
warning.  Therefore, just summarize the commit ourselves.

Signed-off-by: Malfurious <m@lfurio.us>

0 files changed, 0 insertions, 0 deletions