Thanks, I installed the attached to master.

The following seem to be false alarms, though:

lisp/progmodes/fortran.el:1823:36: In call to skip-chars-backward: Duplicated 
character ` ' (pos 2)
   " \t "
    ...^
[and similar matches] This seem to be assuming that the customized variable 
fortran-comment-indent-char has its default value.

lisp/isearch.el:2191:23: In call to string-match-p: Error: Unknown syntax code 
‘@’: 
"\\`\\(?:\\s-\\|\\s.\\|\\s(\\|\\s)\\|\\s\"\\|\\s\\\\|\\s/\\|\\s$\\|\\s'\\|\\s<\\|\\s>\\|\\s@\\|\\s!\\|\\s|\\)+\\'"
[and similar matches] This seems to be assuming that \s@ is not valid, but that 
escape is documented as valid. Is there some problem with \s@ that I don't know 
about?