unconditionally print hint about noatime. Closes:#851873.
* messages: Be a lot more friendly about NEW in particular,
and also add a couple of `please's. Closes:#904448.
+ * dgit: Introduce dgit.default.build-products-dir git
+ configuration key. Closes:#857316. [ Sean Whitton. ]
+ Still does not always work, due to #863582.
+ * dgit: Minor internal improvements.
+ * dgit: Rename --ignore-dirty to --include-dirty (leaving the old
+ name supported as a deprecated alias).
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