RFR: 8262265: ProblemList jdk/javadoc/doclet/testGeneratedClasses/TestGeneratedClasses.java on Windows

[Daniel D.Daugherty]

A trivial fix to ProblemList jdk/javadoc/doclet/testGeneratedClasses/TestGeneratedClasses.java on Windows.

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Commit messages:
 - 8262265: ProblemList jdk/javadoc/doclet/testGeneratedClasses/TestGeneratedClasses.java on Windows

Changes: https://git.openjdk.java.net/jdk/pull/2697/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2697&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8262265
  Stats: 3 lines in 1 file changed: 2 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2697.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2697/head:pull/2697

PR: https://git.openjdk.java.net/jdk/pull/2697