RFR: 8279995: jpackage --add-launcher option should allow overriding description

[Alexander Matveev]

On Wed, 9 Feb 2022 07:37:42 GMT, Alexander Matveev <almatvee at openjdk.org> wrote:

> Added ability to override description for additional launchers via "description" property.

Added automated tests for .exe files in Windows and .desktop files on Linux.

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PR: https://git.openjdk.java.net/jdk/pull/7399