* Manpage said that --clean=check was -wn but that is --clean=none;
correctly document that --clean=check is actually -wc.
* Document that up to -DDD (not just -DD) is meaningfully different.
+ * Document that -cname=value applies only for this run.
+ * Improve manpage comment about defining a new distro.
+ * Document that --quilt=linear is the default for Debian.
+ * Fix a formatting problem in --build-products-dir= doc.
+ * In manpage, do not seem to imply that NMU should be of only one
+ new commit.
+ * Qualify to Debian the manpage comment about how to do NMU.
+ * In discussion on how to start using dgit when already using git, do
+ not imply/assume that existing git history will have identical trees
+ to dgit history.
--