Update runtime files
diff --git a/runtime/doc/usr_09.txt b/runtime/doc/usr_09.txt
index 88189bd..b64af81 100644
--- a/runtime/doc/usr_09.txt
+++ b/runtime/doc/usr_09.txt
@@ -113,7 +113,7 @@
When there are vertically split windows, only the windows on the right side
will have a scrollbar. However, when you move the cursor to a window on the
-left, it will be this one the that scrollbar controls. This takes a bit of
+left, it will be this one that the scrollbar controls. This takes a bit of
time to get used to.
When you work with vertically split windows, consider adding a scrollbar on
the left. This can be done with a menu item, or with the 'guioptions' option: