8221532: Incorrect copyright header in FileSystemSupport_md.c

Reviewed-by: cjplummer, gadams

src/java.instrument/unix/native/libinstrument/FileSystemSupport_md.c

 /*
- * Copyright (c) 2004, 2018 Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2004, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it

src/java.instrument/windows/native/libinstrument/FileSystemSupport_md.c

 /*
- * Copyright (c) 2004, 2018 Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2004, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it