[NO-ISSUE] mvel.jj license (#6164)

* [NO-ISSUE] mvel.jj license

* - adjust words

* - fixed a period

LICENSE

@@ -243,4 +243,8 @@ for drools-drl/drools-drl-parser/src/main/antlr4/org/drools/drl/parser/antlr4/Ja
 
  Included by permission of the http://tpop.awl.com/ web site, which says:
  "You may use this code for any purpose, as long as you leave the
- copyright notice and book citation attached."
+ copyright notice and book citation attached."
+
+ ------------------------------------------------------------------------------------
+ for drools-model/drools-mvel-parser/src/main/javacc/mvel.jj
+     JavaParser is dual licensed under LGPL license and Apache License Version 2.0 license. We choose the Apache License Version 2.0.