kernelshark: Use static_cast instead of C cast in KsMainWindow

Signed-off-by: Benjamin ROBIN <dev@benjarobin.fr>
Signed-off-by: Yordan Karadzhov <y.karadz@gmail.com>
diff --git a/src/KsMainWindow.cpp b/src/KsMainWindow.cpp
index 72ad371..72f4280 100644
--- a/src/KsMainWindow.cpp
+++ b/src/KsMainWindow.cpp
@@ -1546,7 +1546,7 @@
 
 void KsMainWindow::_captureError(QProcess::ProcessError error)
 {
-	QProcess *capture = (QProcess *)sender();
+	QProcess *capture = static_cast<QProcess*>(sender());
 	_captureErrorMessage(capture);
 }