Update runtime files.
diff --git a/runtime/doc/change.txt b/runtime/doc/change.txt
index bef7500..4c5b402 100644
--- a/runtime/doc/change.txt
+++ b/runtime/doc/change.txt
@@ -1,4 +1,4 @@
-*change.txt* For Vim version 8.1. Last change: 2018 Dec 14
+*change.txt* For Vim version 8.1. Last change: 2019 Feb 05
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -640,11 +640,11 @@
For the {pattern} see |pattern|.
{string} can be a literal string, or something
special; see |sub-replace-special|.
- *E939*
When [range] and [count] are omitted, replace in the
current line only. When [count] is given, replace in
[count] lines, starting with the last line in [range].
When [range] is omitted start in the current line.
+ *E939*
[count] must be a positive number. Also see
|cmdline-ranges|.