Variable: fortran-comment-indent-char
fortran-comment-indent-char is a customizable variable defined in
fortran.el.gz.
Value
" "
Documentation
Single-character string inserted for Fortran comment indentation.
Normally a space.
Source Code
;; Defined in /usr/src/emacs/lisp/progmodes/fortran.el.gz
;; Note that this is documented in the v18 manuals as being a string
;; of length one rather than a single character.
;; The code in this file accepts either format for compatibility.
(defcustom fortran-comment-indent-char " "
"Single-character string inserted for Fortran comment indentation.
Normally a space."
:type 'string
:safe (lambda (value) (or (characterp value)
(and (stringp value) (= (length value) 1))))
:group 'fortran-comment)