Update runtime files
diff --git a/runtime/doc/quickfix.txt b/runtime/doc/quickfix.txt
index f94da7d..9ebefa9 100644
--- a/runtime/doc/quickfix.txt
+++ b/runtime/doc/quickfix.txt
@@ -1,4 +1,4 @@
-*quickfix.txt* For Vim version 8.2. Last change: 2021 May 02
+*quickfix.txt* For Vim version 8.2. Last change: 2021 May 22
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -1386,7 +1386,8 @@
%o module name (finds a string)
%l line number (finds a number)
%c column number (finds a number representing character
- column of the error, (1 <tab> == 1 character column))
+ column of the error, byte index, a <tab> is 1
+ character column)
%v virtual column number (finds a number representing
screen column of the error (1 <tab> == 8 screen
columns))