Variable: dired-omit-marker-char
dired-omit-marker-char is a variable defined in dired-x.el.gz.
Value
15
Documentation
Temporary marker used by Dired-Omit.
Should never be used as marker by the user or other packages.
Source Code
;; Defined in /usr/src/emacs/lisp/dired-x.el.gz
;; \017=^O for Omit - other packages can choose other control characters.
(defvar dired-omit-marker-char ?\017
"Temporary marker used by Dired-Omit.
Should never be used as marker by the user or other packages.")