patch 8.2.2366: when using ":sleep" the cursor is always displayed

Problem:    When using ":sleep" the cursor is always displayed.
Solution:   Do not display the cursor when using ":sleep!". (Jeremy Lerner,
            closes #7688)
diff --git a/runtime/doc/various.txt b/runtime/doc/various.txt
index a895a5e..c116d69 100644
--- a/runtime/doc/various.txt
+++ b/runtime/doc/various.txt
@@ -707,12 +707,12 @@
 			not more than one line.
 
 [N]gs							*gs* *:sl* *:sleep*
-:[N]sl[eep] [N]	[m]	Do nothing for [N] seconds.  When [m] is included,
+:[N]sl[eep] [N][m]	Do nothing for [N] seconds.  When [m] is included,
 			sleep for [N] milliseconds.  The count for "gs" always
 			uses seconds.  The default is one second. >
 			     :sleep	     "sleep for one second
 			     :5sleep	     "sleep for five seconds
-			     :sleep 100m     "sleep for a hundred milliseconds
+			     :sleep 100m     "sleep for 100 milliseconds
 			     10gs	     "sleep for ten seconds
 <			Can be interrupted with CTRL-C (CTRL-Break on
 			MS-Windows).  "gs" stands for "goto sleep".