RFR: 8282011: test/jdk/tools/jpackage/windows/WinL10nTest.java test fails if light.exe is not in %PATH%

[Alexey Semenyuk]

8282011: test/jdk/tools/jpackage/windows/WinL10nTest.java test fails if light.exe is not in %PATH%

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Commit messages:
 - 8282011: test/jdk/tools/jpackage/windows/WinL10nTest.java test fails locally

Changes: https://git.openjdk.java.net/jdk/pull/7500/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7500&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8282011
  Stats: 6 lines in 1 file changed: 3 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7500.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7500/head:pull/7500

PR: https://git.openjdk.java.net/jdk/pull/7500