diff --git a/runtime/doc/undo.txt b/runtime/doc/undo.txt
index b1c6fa7..fabee45 100644
--- a/runtime/doc/undo.txt
+++ b/runtime/doc/undo.txt
@@ -1,4 +1,4 @@
-*undo.txt*      For Vim version 8.2.  Last change: 2020 Oct 18
+*undo.txt*      For Vim version 8.2.  Last change: 2020 Nov 30
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -65,9 +65,9 @@
 the redo will not be possible anymore.
 
 'u' included, the Vi-compatible way:
-The undo command undoes the previous change, and also the previous undo command.
-The redo command repeats the previous undo command.  It does NOT repeat a
-change command, use "." for that.
+The undo command undoes the previous change, and also the previous undo
+command.  The redo command repeats the previous undo command.  It does NOT
+repeat a change command, use "." for that.
 
 Examples	Vim way			Vi-compatible way	~
 "uu"		two times undo		no-op
@@ -103,7 +103,7 @@
 
 	:undojoin | delete
 
-After this an "u" command will undo the delete command and the previous
+After this a "u" command will undo the delete command and the previous
 change.
 
 To do the opposite, break a change into two undo blocks, in Insert mode use