L<public-inbox-watch(1)>, L<public-inbox-mda(1)>,
L<public-inbox-learn(1)>, and L<public-inbox-index(1)>.
+This command is rarely used, as Xapian DB formats rarely
+change.
+
=head1 OPTIONS
=over
=item --no-fsync
Disable L<fsync(2)> and L<fdatasync(2)>.
+See L<public-inbox-index(1)/--no-fsync> for caveats.
Available in public-inbox 1.6.0 (PENDING).