-separated list of patterns to add to the exclude list. This is equivalent
-to the client specifying these patterns with the --exclude option, except
-that the exclude list is not passed to the client and thus only applies on
+separated list of patterns to add to the exclude list.
+This is only superficially equivalent
+to the client specifying these patterns with the --exclude option.
+Only one "exclude" option may be specified, but
+you can use "-" and "+" before patterns to specify exclude/include.
+
+Because this exclude list is not passed to the client it only applies on