Update runtime files.
diff --git a/runtime/doc/digraph.txt b/runtime/doc/digraph.txt
index 600692e..a174d3c 100644
--- a/runtime/doc/digraph.txt
+++ b/runtime/doc/digraph.txt
@@ -1,4 +1,4 @@
-*digraph.txt*   For Vim version 8.1.  Last change: 2018 Dec 14
+*digraph.txt*   For Vim version 8.1.  Last change: 2019 Feb 17
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -59,18 +59,9 @@
 "10".  That's because NUL characters are internally represented with a NL
 character.  When you write the file it will become a NUL character.
 
-When Vim was compiled without the |+multi_byte| feature, you need to specify
-the character in the encoding given with 'encoding'.  You might want to use
-something like this: >
-
-	if has("multi_byte")
-		digraph oe 339
-	elseif &encoding == "iso-8859-15"
-		digraph oe 189
-	endif
-
-This defines the "oe" digraph for a character that is number 339 in Unicode
-and 189 in latin9 (iso-8859-15).
+Example: >
+	digraph oe 339
+This defines the "oe" digraph for a character that is number 339 in Unicode.
 
 ==============================================================================
 2. Using digraphs					*digraphs-use*
@@ -164,8 +155,7 @@
 Example: a: is ä  and o: is ö
 
 These are the RFC1345 digraphs for the one-byte characters.  See the output of
-":digraphs" for the others.  The characters above 255 are only available when
-Vim was compiled with the |+multi_byte| feature.
+":digraphs" for the others.
 
 EURO