Update runtime files
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index a181ecb..26b6683 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1,4 +1,4 @@
-*options.txt* For Vim version 8.2. Last change: 2021 Jul 22
+*options.txt* For Vim version 8.2. Last change: 2021 Aug 28
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -195,11 +195,18 @@
This sets the 'titlestring' option to "hi" and 'iconstring' to "there": >
:set titlestring=hi|set iconstring=there
-Similarly, the double quote character starts a comment. To include the '"' in
-the option value, use '\"' instead. This example sets the 'titlestring'
-option to 'hi "there"': >
+Similarly, in legacy script the double quote character starts a comment. To
+include the '"' in the option value, use '\"' instead. This example sets the
+'titlestring' option to 'hi "there"': >
:set titlestring=hi\ \"there\"
+In |Vim9| script it's simpler, comments start with a '#' character, and only
+when preceded by white space. A backslash is needed less often: >
+ vim9script
+ set titlestring=hi\ "there"
+ set titlestring=hi#there#
+ set titlestring=hi\ \#there#
+
For Win32 backslashes in file names are mostly not removed. More precise: For
options that expect a file name (those where environment variables are
expanded) a backslash before a normal file name character is not removed. But