Update runtime files.
diff --git a/runtime/doc/quickfix.txt b/runtime/doc/quickfix.txt
index 96085d2..83379b8 100644
--- a/runtime/doc/quickfix.txt
+++ b/runtime/doc/quickfix.txt
@@ -1,4 +1,4 @@
-*quickfix.txt* For Vim version 8.0. Last change: 2018 Apr 28
+*quickfix.txt* For Vim version 8.0. Last change: 2018 May 01
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -1257,7 +1257,7 @@
to indicate the column of the error. This is to be used in a multi-line error
message. See |errorformat-javac| for a useful example.
-The "%s" conversion specifies the text to search for to locate the error line.
+The "%s" conversion specifies the text to search for, to locate the error line.
The text is used as a literal string. The anchors "^" and "$" are added to
the text to locate the error line exactly matching the search text and the
text is prefixed with the "\V" atom to make it "very nomagic". The "%s"