Merge branch '2.2.x'

Closes gh-19635

Author: snicoll

spring-boot-project/spring-boot-docs/src/docs/asciidoc/legal.adoc

@@ -3,7 +3,7 @@
 
 {spring-boot-version}
 
-Copyright © 2012-2019
+Copyright © 2012-2020
 
 Copies of this document may be made for your own use and for distribution to
 others, provided that you do not charge any fee for such copies and further