git: openjdk/jdk: 8326116: JFR: Add help option to -XX:StartFlightRecording

[Erik Gahlin]

Changeset: f7c84137
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2024-04-16 17:21:47 +0000
URL:       https://git.openjdk.org/jdk/commit/f7c84137b5a1c9ce9878ff37a1f006a84b883b5e

8326116: JFR: Add help option to -XX:StartFlightRecording

Reviewed-by: mgronlun

! src/hotspot/share/jfr/dcmd/jfrDcmds.cpp
! src/hotspot/share/jfr/dcmd/jfrDcmds.hpp
! src/jdk.jfr/share/classes/jdk/jfr/internal/dcmd/DCmdStart.java
! src/jdk.jfr/share/classes/jdk/jfr/internal/util/Utils.java
+ test/jdk/jdk/jfr/startupargs/TestStartHelp.java