RFR: 8262018: Wrong format in SAP copyright header of OsVersionTest

[Christoph Langer]

The fix for JDK-8261753 introduced a ',' after the copyright years which is not the expected format for SAP copyrights.

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Commit messages:
 - JDK-8262018

Changes: https://git.openjdk.java.net/jdk/pull/2642/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2642&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8262018
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2642.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2642/head:pull/2642

PR: https://git.openjdk.java.net/jdk/pull/2642