Merge from origin/emacs-28

821c240075 Fix ietf-drums-get-comment doc string
638247baa4 Fix typo in display.texi

doc/lispref/display.texi

@@ -7317,7 +7317,7 @@ current buffer, and returns it.
 @end defun
 
 @defun insert-button label &rest properties
-This insert a button with the label @var{label} at point,
+This inserts a button with the label @var{label} at point,
 and returns it.
 @end defun
 

lisp/mail/ietf-drums.el

@@ -150,7 +150,7 @@ backslash and doublequote.")
       (buffer-string))))
 
 (defun ietf-drums-get-comment (string)
-  "Return the first comment in STRING."
+  "Return the last comment in STRING."
   (with-temp-buffer
     (ietf-drums-init string)
     (let (result c)