RFR (XS/T) 8241445: Fix copyrights after JDK-8240629 change

[Aleksey Shipilev]

This change in JDK-8240629 was not correct and slipped the review?
  https://hg.openjdk.java.net/jdk/jdk/rev/79371dab85c2#l2.5

Also, other file has not updated the copyright line.

Fix:

diff -r 35ff74547c64 src/java.base/share/native/libjli/args.c
--- a/src/java.base/share/native/libjli/args.c  Mon Mar 23 14:10:58 2020 +0100
+++ b/src/java.base/share/native/libjli/args.c  Mon Mar 23 15:00:46 2020 +0100
@@ -1,4 +1,4 @@
 /*
- * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2020, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
diff -r 35ff74547c64 test/jdk/tools/launcher/ArgFileSyntax.java
--- a/test/jdk/tools/launcher/ArgFileSyntax.java        Mon Mar 23 14:10:58 2020 +0100
+++ b/test/jdk/tools/launcher/ArgFileSyntax.java        Mon Mar 23 15:00:46 2020 +0100
@@ -1,4 +1,4 @@
 /*
- * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2020, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *

Testing: none.

-- 
Thanks,
-Aleksey