Fixes for coverity warnings.

runtime/doc/diff.txt

@@ -1,4 +1,4 @@
-*diff.txt*      For Vim version 7.3c.  Last change: 2009 Sep 15
+*diff.txt*      For Vim version 7.3c.  Last change: 2010 Jul 31
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -57,6 +57,7 @@ In each of the edited files these options are set:
 
 	'diff'		on
 	'scrollbind'	on
+	'cursorbind'	on
 	'scrollopt'	includes "hor"
 	'wrap'		off
 	'foldmethod'	"diff"
@@ -133,6 +134,7 @@ the old values are not remembered.
 
 	'diff'		off
 	'scrollbind'	off
+	'cursorbind'	off
 	'scrollopt'	without "hor"
 	'wrap'		on
 	'foldmethod'	"manual"

runtime/doc/todo.txt

@@ -30,8 +30,6 @@ be worked on, but only if you sponsor Vim development.  See |sponsor|.
 							*known-bugs*
 -------------------- Known bugs and current work -----------------------
 
-After ":diffoff" scroll binding doesn't stop completely.
-
 Windows 7: "Open with..." menu starts Vim without a file.
 Need to use other registry methods in if_ole.cpp?
 
@@ -39,9 +37,6 @@ Windows 7: installing Vim again doesn't find the previously installed Vim.
 
 Move more common code from if_python.c and if_python3.c to if_py_both.h
 
-Add filetype completion to user commands. (Christian Brabandt, 2010 Jul 26)
-But call it "filetype" instead of "syntax"?
-
 Uninspected issues on http://scan.coverity.com/rung2.html
 
 Before release 7.3: