RFR: 6779701: Wrong defect ID in the code of test LocalRMIServerSocketFactoryTest.java

[Kevin Walls]

Trivial comment and exception text update, correcting a bug ID to make more sense.

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Commit messages:
 - 6779701: Wrong defect ID in the code of test LocalRMIServerSocketFactoryTest.java

Changes: https://git.openjdk.java.net/jdk/pull/7371/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7371&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-6779701
  Stats: 6 lines in 1 file changed: 0 ins; 0 del; 6 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7371.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7371/head:pull/7371

PR: https://git.openjdk.java.net/jdk/pull/7371