-The filenames matched against the exclude/include patterns are
-relative to the base directories, so patterns should not
-include the path elements to those base directories. The
-only way in which a pattern will match the absolute path of
-a file or directory is if the base path is the root directory.
+The filenames matched against the exclude/include patterns
+are relative to the destination directory, or "top
+directory", so patterns should not include the path elements
+of the source or destination directories. The only way in
+which a pattern will match the absolute path of a file or
+directory is if the source path is the root directory.