[jdk17] RFR: JDK-8249646: Runtime.exec(String, String[], File) documentation contains literal {@link ...}

[Jonathan Gibbons]

Please review a trivial `noreg-doc` fix for some javadoc tags for `java.lang.Runtime` for JDK17

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Commit messages:
 - JDK-8249646: Runtime.exec(String, String[], File) documentation contains literal {@link ...}

Changes: https://git.openjdk.java.net/jdk17/pull/167/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17&pr=167&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8249646
  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk17/pull/167.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17 pull/167/head:pull/167

PR: https://git.openjdk.java.net/jdk17/pull/167