Runtime file updates.
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index f4fc249..8418130 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1,4 +1,4 @@
-*options.txt* For Vim version 8.1. Last change: 2019 Nov 26
+*options.txt* For Vim version 8.1. Last change: 2019 Dec 06
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -496,10 +496,11 @@
*modeline* *vim:* *vi:* *ex:* *E520*
There are two forms of modelines. The first form:
- [text]{white}{vi:|vim:|ex:}[white]{options}
+ [text{white}]{vi:|vim:|ex:}[white]{options}
-[text] any text or empty
-{white} at least one blank character (<Space> or <Tab>)
+[text{white}] empty or any text followed by at least one blank
+ character (<Space> or <Tab>); "ex:" always requires at
+ least one blank character
{vi:|vim:|ex:} the string "vi:", "vim:" or "ex:"
[white] optional white space
{options} a list of option settings, separated with white space