There is no automatic way to use reserved NNTP article numbers
when old mail is found, yet.
+Available since public-inbox 1.6.0 (PENDING).
+
Default: unset, no NNTP article numbers are skipped
=item -S, --skip-epoch
mail while allowing "0.git" (or "1.git" and so on) epochs to be
added-after-the-fact (without affecting "git clone" followers).
+Available since public-inbox 1.2.0.
+
Default: unset, no epochs are skipped
=item -j, --jobs=JOBS