RFR: 8356684: jpackage error messages are not helpful [v2]

[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 refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains two new commits since the last revision:

 - Update copyright year
 - CommandOutputControlTest: improve coverage

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/29197/files
  - new: https://git.openjdk.org/jdk/pull/29197/files/e97093d9..591f5692

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=29197&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=29197&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 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