RFR: 8261975: Missing "classpath exception" in VectorSupport.java

[Paul Sandoz]

Add missing classpath exception paragraph

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Commit messages:
 - 8261975: Missing "classpath exception" in VectorSupport.java

Changes: https://git.openjdk.java.net/jdk/pull/2678/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2678&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8261975
  Stats: 4 lines in 1 file changed: 2 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2678.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2678/head:pull/2678

PR: https://git.openjdk.java.net/jdk/pull/2678