RFR: 8260576: Typo in compiler/runtime/safepoints/TestRegisterRestoring.java

[xpbob]

8260576: Typo in compiler/runtime/safepoints/TestRegisterRestoring.java

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Commit messages:
 - 8260576: Typo in compiler/runtime/safepoints/TestRegisterRestoring.java

Changes: https://git.openjdk.java.net/jdk/pull/2286/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2286&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8260576
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2286.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2286/head:pull/2286

PR: https://git.openjdk.java.net/jdk/pull/2286