-only the super-user can set file ownership. The preservation is done
-primarily by name, but falls back to using the ID number if the ID has
-no name on the sending side or has no match on the receiving side.
-See also the --numeric-ids option and the "use chroot" setting in the
-rsyncd.conf manpage.
+only the super-user can set file ownership. By default, the preservation
+is done by name, but may fall back to using the ID number in some
+circumstances. See the --numeric-ids option for a full discussion.