Add more Q_FALLTHROUGH()

Silence g++ 7.X warnings.

Change-Id: Id06d06e7e3b5be2cf3934d81f1891da58dea2649
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/widgets/widgets/qpushbutton.cpp b/src/widgets/widgets/qpushbutton.cpp
index 8187b8f35c..afb17f533b 100644
--- a/src/widgets/widgets/qpushbutton.cpp
+++ b/src/widgets/widgets/qpushbutton.cpp
@@ -461,7 +461,7 @@ void QPushButton::keyPressEvent(QKeyEvent *e)
             click();
             break;
         }
-        // fall through
+        Q_FALLTHROUGH();
     default:
         QAbstractButton::keyPressEvent(e);
     }