--del an alias for --delete-during
--delete delete extraneous files from dest dirs
--delete-before receiver deletes before transfer (default)
-@@ -1105,6 +1106,14 @@ dit(bf(--remove-source-files)) This tells rsync to remove from the sending
+@@ -1111,6 +1112,14 @@ dit(bf(--remove-source-files)) This tells rsync to remove from the sending
side the files (meaning non-directories) that are a part of the transfer
and have been successfully duplicated on the receiving side.