Update runtime files.
diff --git a/runtime/doc/pattern.txt b/runtime/doc/pattern.txt
index 323f167..300262d 100644
--- a/runtime/doc/pattern.txt
+++ b/runtime/doc/pattern.txt
@@ -1,4 +1,4 @@
-*pattern.txt* For Vim version 7.4. Last change: 2015 Feb 17
+*pattern.txt* For Vim version 7.4. Last change: 2015 Mar 16
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -1060,7 +1060,10 @@
*E769*
When the ']' is not there Vim will not give an error message but
assume no collection is used. Useful to search for '['. However, you
- do get E769 for internal searching.
+ do get E769 for internal searching. And be aware that in a
+ `:substitute` command the whole command becomes the pattern. E.g.
+ ":s/[/x/" searches for "[/x" and replaces it with nothing. It does
+ not search for "[" and replaces it with "x"!
If the sequence begins with "^", it matches any single character NOT
in the collection: "[^xyz]" matches anything but 'x', 'y' and 'z'.