use in place of \"-ls\" as the final argument.
Collect output in the \"*Find*\" buffer. To kill the job before
-it finishes, type \\[kill-find]."
+it finishes, type \\[kill-find].
+
+For more information on how to write valid find expressions for
+ARGS, see Info node `(find) Finding Files'. If you are not
+using GNU findutils (on macOS and *BSD systems), see instead the
+man page for \"find\"."
(interactive (list (read-directory-name "Run find in directory: " nil "" t)
(read-string "Run find (with args): " find-args
'(find-args-history . 1))))