Update ref doc copyright year

jgrandja · jgrandja · commit 9920cb41d10b · 2019-09-12T19:28:01.000-04:00
diff --git a/docs/manual/src/docs/asciidoc/index-docinfo.xml b/docs/manual/src/docs/asciidoc/index-docinfo.xml
@@ -1,7 +1,7 @@
 <productname>Spring Security</productname>
 <releaseinfo>{spring-security-version}</releaseinfo>
 <copyright>
-	<year>2004-2017</year>
+	<year>2004-2019</year>
 </copyright>
 <legalnotice>
 	<para>Copies of this document may be made for your own use and for distribution to
