Update runtime files.
diff --git a/runtime/doc/undo.txt b/runtime/doc/undo.txt
index 414a63b..46469b3 100644
--- a/runtime/doc/undo.txt
+++ b/runtime/doc/undo.txt
@@ -1,4 +1,4 @@
-*undo.txt* For Vim version 7.4. Last change: 2013 Sep 08
+*undo.txt* For Vim version 7.4. Last change: 2014 May 24
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -97,9 +97,9 @@
or redo.
{not in Vi}
-This is most useful when you need to prompt the user halfway a change. For
-example in a function that calls |getchar()|. Do make sure that there was a
-related change before this that you must join with.
+This is most useful when you need to prompt the user halfway through a change.
+For example in a function that calls |getchar()|. Do make sure that there was
+a related change before this that you must join with.
This doesn't work by itself, because the next key press will start a new
change again. But you can do something like this: >