Update runtime files.
diff --git a/runtime/doc/quickref.txt b/runtime/doc/quickref.txt
index 6f43022..f2c540b 100644
--- a/runtime/doc/quickref.txt
+++ b/runtime/doc/quickref.txt
@@ -957,6 +957,8 @@
'undoreload' 'ur' max nr of lines to save for undo on a buffer reload
'updatecount' 'uc' after this many characters flush swap file
'updatetime' 'ut' after this many milliseconds flush swap file
+'varsofttabstop' 'vsts' a list of number of spaces when typing <Tab>
+'vartabstop' 'vts' a list of number of spaces for <Tab>s
'verbose' 'vbs' give informative messages
'verbosefile' 'vfile' file to write messages in
'viewdir' 'vdir' directory where to store files with :mkview