emacs-27 updated (452d776 -> f8607d3)

[Noam Postavsky]

npostavs pushed a change to branch emacs-27.

      from  452d776   Fix small bug in copy_string_contents.
       new  7e78f0d   Fix void-variable n-reb in re-builder (Bug#40409)
       new  f8607d3   Handle filling of indented ChangeLog function entries


Summary of changes:
 lisp/emacs-lisp/re-builder.el  | 17 ++++++++---------
 lisp/vc/log-edit.el            |  2 +-
 test/lisp/vc/log-edit-tests.el | 25 +++++++++++++++++++++++++
 3 files changed, 34 insertions(+), 10 deletions(-)