RFR: 8357675: Amend headless message

[Phil Race]

On Mon, 26 May 2025 17:49:15 GMT, Alexey Ivanov <aivanov at openjdk.org> wrote:

> > The existing message is fine. The comma is because it isn't done.
> 
> How is it not done?
> 
> > It introduces the exception text and the blank line adds some clarity. So nothing to change here.
> 
> Nothing goes after the comma, the exception message ends here, and the stack trace follows.

stack trace is what I mean by exception text. 
The full text in the bug report reads better with a comma than a full stop.
Is this text ever displayed without the stack trace following ? I can't remember.

> 
> The blank line between the message and the stack trace is very uncommon.

It looks OK to me, but its obviously a matter of preference.

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

PR Comment: https://git.openjdk.org/jdk/pull/25453#issuecomment-2910406690