patch 8.2.2440: documentation based on patches is outdated

Problem:    Documentation based on patches is outdated.
Solution:   Add changes to documentation in a patch.

Author: brammool

runtime/doc/autocmd.txt

@@ -1,4 +1,4 @@
-*autocmd.txt*   For Vim version 8.2.  Last change: 2020 Dec 19
+*autocmd.txt*   For Vim version 8.2.  Last change: 2021 Jan 28
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -54,7 +54,8 @@ effects.  Be careful not to destroy your text.
 :au[tocmd] [group] {event} {pat} [++once] [++nested] {cmd}
 			Add {cmd} to the list of commands that Vim will
 			execute automatically on {event} for a file matching
-			{pat} |autocmd-patterns|.
+			{pat} |autocmd-patterns|. 
+			Here {event} cannot be "*".  *E1155*
 			Note: A quote character is seen as argument to the
 			:autocmd and won't start a comment.
 			Vim always adds the {cmd} after existing autocommands,

runtime/doc/cmdline.txt

@@ -1,4 +1,4 @@
-*cmdline.txt*   For Vim version 8.2.  Last change: 2020 Dec 26
+*cmdline.txt*   For Vim version 8.2.  Last change: 2021 Jan 26
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar

runtime/doc/hangulin.txt

@@ -8,7 +8,7 @@ Vim had built-in support for hangul, the Korean language, for users without
 XIM (X Input Method).  Since it didn't work well and was not maintained it was
 removed in Vim 8.1.2327.
 
-If you want this hangul input mehod you can go back to Vim 8.1.2326 or
+If you want this hangul input method you can go back to Vim 8.1.2326 or
 earlier.  If you think this code is still useful and want to maintain it, make
 a patch to add it back.  However, making it work with UTF-8 encoding would be
 best.