Update runtime files.
diff --git a/runtime/doc/digraph.txt b/runtime/doc/digraph.txt
index 2a23222..62f23a2 100644
--- a/runtime/doc/digraph.txt
+++ b/runtime/doc/digraph.txt
@@ -1488,4 +1488,4 @@
 ſt	ft	FB05	64261	LATIN SMALL LIGATURE LONG S T
 st	st	FB06	64262	LATIN SMALL LIGATURE ST
 
- vim:tw=78:ts=8:ft=help:norl:
+ vim:tw=78:ts=8:noet:ft=help:norl: