Update runtime files
diff --git a/runtime/doc/quickref.txt b/runtime/doc/quickref.txt
index 9573890..6366237 100644
--- a/runtime/doc/quickref.txt
+++ b/runtime/doc/quickref.txt
@@ -1,4 +1,4 @@
-*quickref.txt* For Vim version 8.2. Last change: 2020 Jan 17
+*quickref.txt* For Vim version 8.2. Last change: 2020 Jun 02
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -851,6 +851,7 @@
'pythonthreedll' name of the Python 3 dynamic library
'pythonthreehome' name of the Python 3 home directory
'pyxversion' 'pyx' Python version used for pyx* commands
+'quickfixtextfunc' 'qftf' function for the text in the quickfix window
'quoteescape' 'qe' escape characters used in a string
'readonly' 'ro' disallow writing the buffer
'redrawtime' 'rdt' timeout for 'hlsearch' and |:match| highlighting