Update runtime files.
diff --git a/runtime/doc/quickref.txt b/runtime/doc/quickref.txt
index 2718f5c..c224199 100644
--- a/runtime/doc/quickref.txt
+++ b/runtime/doc/quickref.txt
@@ -1,4 +1,4 @@
-*quickref.txt* For Vim version 8.1. Last change: 2019 Apr 28
+*quickref.txt* For Vim version 8.1. Last change: 2019 May 24
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -798,6 +798,7 @@
'menuitems' 'mis' maximum number of items in a menu
'mkspellmem' 'msm' memory used before |:mkspell| compresses the tree
'modeline' 'ml' recognize modelines at start or end of file
+'modelineexpr' 'mle' allow setting expression options from a modeline
'modelines' 'mls' number of lines checked for modelines
'modifiable' 'ma' changes to the text are not possible
'modified' 'mod' buffer has been modified