-specified, so you don't usually need to use it explicitly. However, it can
-come in handy for a user that wants to avoid the "bf(-r --exclude='/*/*')"
-options that rsync might use as a compatibility kluge when generating a
-non-recursive listing, or to list the files that are involved in a local
-copy (since the destination path is not optional for a local copy, you
-must specify this option explicitly and still include a destination).
+specified, so its main uses are: (1) to turn a copy command that includes a
+destination arg into a file-listing command, (2) to be able to specify more
+than one local source arg (note: be sure to include the destination), or
+(3) to avoid the automatically added "bf(-r --exclude='/*/*')" options that
+rsync usually uses as a compatibility kluge when generating a non-recursive
+listing.