Adds a warning symbol.
Adds a note to the brief string.
Change-Id: Ib036295bbcf7ab5eca7fd554fb2da836fedad8a0
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
(cherry picked from commit 5290ba4cbd1e5bcdc217b58b0495768263097ba3)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>