Update runtime files
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index 66a9e17..1a6e561 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 Mar 24
+*options.txt* For Vim version 8.1. Last change: 2019 Apr 10
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -2547,6 +2547,7 @@
< When using the ":set" command, you need to double the backslashes!
To avoid that use `:let` with a single quote string: >
let &l:define = '^\s*\ze\k\+\s*=\s*function('
+<
*'delcombine'* *'deco'* *'nodelcombine'* *'nodeco'*
'delcombine' 'deco' boolean (default off)
@@ -7311,7 +7312,8 @@
set spelllang=en_us,nl,medical
< This means US English, Dutch and medical words are recognized. Words
that are not recognized will be highlighted.
- The word list name must not include a comma or dot. Using a dash is
+ The word list name must consist of alphanumeric characters, a dash or
+ an underscore. It should not include a comma or dot. Using a dash is
recommended to separate the two letter language name from a
specification. Thus "en-rare" is used for rare English words.
A region name must come last and have the form "_xx", where "xx" is