Fix comment.

Reported by Paul Hardy <unifoundry@gmail.com>.

* lib/jisx0213.h: Fix comment about the underlying standard version.
diff --git a/ChangeLog b/ChangeLog
index 3af95eb..088d17d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2019-05-22  Bruno Haible  <bruno@clisp.org>
+
+	Fix comment.
+	Reported by Paul Hardy <unifoundry@gmail.com>.
+	* lib/jisx0213.h: Fix comment about the underlying standard version.
+
 2019-05-11  Bruno Haible  <bruno@clisp.org>
 
 	Update bug reporting instructions.
diff --git a/lib/jisx0213.h b/lib/jisx0213.h
index 455f281..fa07de4 100644
--- a/lib/jisx0213.h
+++ b/lib/jisx0213.h
@@ -18,7 +18,7 @@
  */
 
 /*
- * JISX0213:2000
+ * JISX0213:2004
  */
 
 #ifndef _JISX0213_H