jpackage OS/X JDK-8263157 fix regressed out

[Michael Hall]

JDK-8263157 <https://bugs.openjdk.java.net/browse/JDK-8263157> [macos]: java.library.path is being set incorrectly

The fix for this seems to be gone in both current jdk17 and jdk18 releases. There is no ‘app’ directory included in java.library.path.

outputdir/HalfPipe.app/Contents/runtime/Contents/Home/bin/java -version
openjdk version "18-ea" 2022-03-15
OpenJDK Runtime Environment (build 18-ea+6-237)
OpenJDK 64-Bit Server VM (build 18-ea+6-237, mixed mode)

outputdir/HalfPipe.app/Contents/MacOS/HalfPipe
Exception in thread "main" java.lang.UnsatisfiedLinkError: no hp in java.library.path: /opt/ooRexx/lib/ooRexx;/Users/mjh/HalfPipe/HalfPipe_jpkg/outputdir/HalfPipe.app/Contents/app:/Users/mjh/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.
	at java.base/java.lang.ClassLoader.loadLibrary(Unknown Source)
	at java.base/java.lang.Runtime.loadLibrary0(Unknown Source)
	at java.base/java.lang.System.loadLibrary(Unknown Source)
	at us.hall.hp.common.LoaderLaunchStub.<clinit>(LoaderLaunchStub.java:35)
Failed to launch JVM