fixup! Add Run Command functionality

Author: fkubicek

src/mainwindow.cpp

@@ -849,11 +849,16 @@ void MainWindow::undoDelete()
 }
 
 void MainWindow::runCommand()
-{
+{   
     auto fileInfo = graphicsView->getCurrentFileDetails().fileInfo;
 
     QString commandString = qvApp->getSettingsManager().getString("commandstring");
     commandString.replace("%QVIEW_PATH%", '"' + fileInfo.filePath() + '"');
+
+#if (QT_VERSION < QT_VERSION_CHECK(5, 15, 0))
+    // this method is obsolete, but useful on older QT versions with no QProcess::splitCommand
+    QProcess::startDetached(commandString);
+#else
     QStringList commandList = QProcess::splitCommand(commandString);
 
     if (commandList.empty())
@@ -863,16 +868,8 @@ void MainWindow::runCommand()
     QStringList arguments = commandList;
     arguments.removeFirst();
 
-    QProcess commandProcess;
-    commandProcess.setProgram(program);
-    commandProcess.setArguments(arguments);
-    commandProcess.setWorkingDirectory(fileInfo.dir().path());
-    commandProcess.setStandardErrorFile(QProcess::nullDevice());
-    commandProcess.setStandardInputFile(QProcess::nullDevice());
-    commandProcess.setStandardOutputFile(QProcess::nullDevice());
-
-    qint64 pid;
-    commandProcess.startDetached(&pid);
+    QProcess::startDetached(program, arguments, fileInfo.dir().path());
+#endif
 }
 
 void MainWindow::copy()