Specify correct input encoding.

git-svn-id: https://svn.r-project.org/R/trunk@82187 00db46b3-68df-0310-9c12-caf00c1e9a41

doc/manual/R-defs.texi

diff --git a/doc/manual/R-defs.texi b/doc/manual/R-defs.texi
index 6d52bac..23002ba 100644
--- a/doc/manual/R-defs.texi
+++ b/doc/manual/R-defs.texi
@@ -1,5 +1,5 @@
 @documentlanguage en
-@documentencoding ISO-8859-1
+@documentencoding UTF-8
 
 @macro R{}
 R