emacs-27 updated (8576297 -> 5578feb)

[Phil]

psainty pushed a change to branch emacs-27.

      from  8576297   ; lisp/so-long.el: Prevent potential error if 
comment-use-syntax is nil
       new  fa20e44   lisp/so-long.el: Improve support for major mode hooks
       new  5578feb   ; * lisp/so-long.el: Documentation


Summary of changes:
 lisp/so-long.el | 64 +++++++++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 55 insertions(+), 9 deletions(-)