RFR: 8356684: jpackage error messages are not helpful [v3]

[Alexey Semenyuk]

> If the output of an external command execution results in a fatal error, jpackage will print the command line of the external command. In quiet mode (without "--vrebose"), it will also print the command's output.
> 
> E.g. (unit test output):
> 
> jpackage --input MainTest\testFailedCommandOutput\input --dest MainTest\testFailedCommandOutput\output --name FailedCommandOutputMainTest --type app-image --main-jar hello.jar --main-class Hello --win-console
> Error: Unexpected exit code 17 from executing the command jlink-mock --output MainTest\testFailedCommandOutput\output\FailedCommandOutputMainTest\runtime --module-path runtime\jmods --add-modules java.base,jdk.xml.dom,jdk.zipfs --strip-native-commands --strip-debug --no-man-pages --no-header-files
> Command output:
> It
> fell
> apart

Alexey Semenyuk has updated the pull request incrementally with one additional commit since the last revision:

  ExecutableAttributesWithCapturedOutput: augmenResultWithOutput() -> augmentResultWithOutput()

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/29197/files
  - new: https://git.openjdk.org/jdk/pull/29197/files/591f5692..612629d8

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=29197&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=29197&range=01-02

  Stats: 6 lines in 3 files changed: 0 ins; 0 del; 6 mod
  Patch: https://git.openjdk.org/jdk/pull/29197.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29197/head:pull/29197

PR: https://git.openjdk.org/jdk/pull/29197