updated for version 7.4.566
Problem:    :argdo, :bufdo, :windo and :tabdo don't take a range.
Solution:   Support the range. (Marcin Szamotulski)
diff --git a/runtime/doc/windows.txt b/runtime/doc/windows.txt
index 67925b8..532cca3 100644
--- a/runtime/doc/windows.txt
+++ b/runtime/doc/windows.txt
@@ -698,8 +698,9 @@
 8. Do a command in all buffers or windows			*list-repeat*
 
 							*:windo*
-:windo {cmd}		Execute {cmd} in each window.
-			It works like doing this: >
+:[range]windo {cmd}	Execute {cmd} in each window or if [range] is given
+			only in windows for which the window number lies in
+			the [range].  It works like doing this: >
 				CTRL-W t
 				:{cmd}
 				CTRL-W w
@@ -717,8 +718,10 @@
 			Also see |:tabdo|, |:argdo| and |:bufdo|.
 
 							*:bufdo*
-:bufdo[!] {cmd}		Execute {cmd} in each buffer in the buffer list.
-			It works like doing this: >
+:[range]bufdo[!] {cmd}	Execute {cmd} in each buffer in the buffer list or if
+			[range] is given only for buffers for which their
+			buffer numer is in the [range].  It works like doing
+			this: >
 				:bfirst
 				:{cmd}
 				:bnext