[jdk13u-dev] RFR: 8282071: Update java.xml module-info

[Yuri Nesterenko]

Fix of a cut/paste typo in module-info.java file. First hunk is dropped as not applicable, and all the environment of that document in older releases is completely different, so the change applied manually, all its three lines.

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Commit messages:
 - Backport c86c51cc72e3457756434b9150b0c5ef2f5d496d

Changes: https://git.openjdk.org/jdk13u-dev/pull/391/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk13u-dev&pr=391&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8282071
  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk13u-dev/pull/391.diff
  Fetch: git fetch https://git.openjdk.org/jdk13u-dev pull/391/head:pull/391

PR: https://git.openjdk.org/jdk13u-dev/pull/391