RFR: 8319465: Typos in javadoc of com.sun.management.OperatingSystemMXBean methods

[Jaikiran Pai]

Can I please get a review of this PR which fixes the typos in the method javadocs of com.sun.management.OperatingSystemMXBean? 

As noted in https://bugs.openjdk.org/browse/JDK-8319465, this PR replaces the word "betweens" by "between"

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Commit messages:
 - 8319465: Typos in javadoc of com.sun.management.OperatingSystemMXBean methods

Changes: https://git.openjdk.org/jdk/pull/16516/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16516&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8319465
  Stats: 4 lines in 1 file changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/16516.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16516/head:pull/16516

PR: https://git.openjdk.org/jdk/pull/16516