<i18n dev> RFR: 8326718: Test java/util/Formatter/Padding.java does not timeout on large inputs before JDK-8299677

[Chad Rakoczy]

[JDK-8299677](https://bugs.openjdk.java.net/browse/JDK-8299677) fixes a bug with Formatter.format taking a long time when there is a lot of padding. This test runs Formatter.format with very large padding. Test fails before [JDK-8299677](https://bugs.openjdk.java.net/browse/JDK-8299677) and passes after.

Timeout for the test was set to 10 seconds. Test passes locally with as low as 1 (after [JDK-8299677](https://bugs.openjdk.java.net/browse/JDK-8299677)) and fails as high as 120 (before [JDK-8299677](https://bugs.openjdk.java.net/browse/JDK-8299677)) so it should be consistent.

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Commit messages:
 - 8326718: Test java/util/Formatter/Padding.java does not timeout on large inputs before JDK-8299677

Changes: https://git.openjdk.org/jdk/pull/18033/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18033&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8326718
  Stats: 41 lines in 1 file changed: 39 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/18033.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18033/head:pull/18033

PR: https://git.openjdk.org/jdk/pull/18033