RFR: ODETOOLS-7903835: apidiff: CompareOptionsTest fails on recent JDK

[Jonathan Gibbons]

Please review a simple fix to not include line numbers in the reference output for this test. The underlying javadoc output has changed, so the line numbers in the diff have also changed.

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Commit messages:
 - ODETOOLS-7903835: apidiff: CompareOptionsTest fails on recent JDK

Changes: https://git.openjdk.org/apidiff/pull/10/files
  Webrev: https://webrevs.openjdk.org/?repo=apidiff&pr=10&range=00
  Issue: https://bugs.openjdk.org/browse/CODETOOLS-7903835
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/apidiff/pull/10.diff
  Fetch: git fetch https://git.openjdk.org/apidiff.git pull/10/head:pull/10

PR: https://git.openjdk.org/apidiff/pull/10