RFR: JDK-8267764: jpackage cannot handle window screensaver files when EXE renamed as SCR

[Andy Herrick]

JDK-8267764: jpackage cannot handle window screensaver files when EXE renamed as SCR

-------------

Commit messages:
 -     JDK-8267764: jpackage cannot handle window screensaver files when EXE renamed as SCR

Changes: https://git.openjdk.java.net/jdk/pull/4306/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4306&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8267764
  Stats: 4 lines in 1 file changed: 2 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4306.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4306/head:pull/4306

PR: https://git.openjdk.java.net/jdk/pull/4306