Don't issue the `warning.per.user.app.image.signed` warning for runtime bundling, as it applies only to the application bundling.
Add corresponding coverage to SigningRuntimeImagePackageTest test. Additionally, use a new `JPackageStringBundle.cannedFormattedStringAsPattern()` overload with fewer parameters in AppVersionTest test. ------------- Commit messages: - 8379431: [macos] jpackage issues unexpected warning when bundling an unsigned runtime package from the signed predefined runtime bundle Changes: https://git.openjdk.org/jdk/pull/30308/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=30308&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8379431 Stats: 61 lines in 5 files changed: 41 ins; 4 del; 16 mod Patch: https://git.openjdk.org/jdk/pull/30308.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/30308/head:pull/30308 PR: https://git.openjdk.org/jdk/pull/30308
