Update runtime files.
diff --git a/runtime/doc/various.txt b/runtime/doc/various.txt
index b0e5e85..09fe964 100644
--- a/runtime/doc/various.txt
+++ b/runtime/doc/various.txt
@@ -1,4 +1,4 @@
-*various.txt*   For Vim version 8.2.  Last change: 2020 Jul 10
+*various.txt*   For Vim version 8.2.  Last change: 2020 Aug 20
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -92,7 +92,7 @@
 			encoding because it contains illegal bytes.
 			Does not wrap around the end of the file.
 			Note that when the cursor is on an illegal byte or the
-			cursor is halfway a multi-byte character the command
+			cursor is halfway a multibyte character the command
 			won't move the cursor.
 
 						*:p* *:pr* *:print* *E749*
@@ -145,16 +145,16 @@
 :{range}z[+-^.=]{count}	Display several lines of text surrounding the line
 			specified with {range}, or around the current line
 			if there is no {range}.  If there is a {count}, that's
-			how many lines you'll see; if there is only one window
-			then twice the value of the 'scroll' option is used,
-			otherwise the current window height minus 3 is used.
+			how many lines you'll see; if there is no {count} and
+			only one window then twice the value of the 'scroll'
+			option is used, otherwise the current window height
+			minus 3 is used.
 
 			If there is a {count} the 'window' option is set to
 			its value.
 
 			:z can be used either alone or followed by any of
-			several punctuation marks.  These have the following
-			effect:
+			several marks.  These have the following effect:
 
 			mark   first line    last line      new cursor line ~
 			----   ----------    ---------      ------------