Fixed exit confirmation title

src/GUI.cpp

@@ -575,7 +575,7 @@ void GUI::closeEvent(QCloseEvent *e) {
     if(e->spontaneous() || force_exit) {
       if(!isVisible())
         show();
-      QMessageBox confirmBox(QMessageBox::Question, tr("Are you sure you want to quit?")+QString::fromUtf8(" -- ")+tr("qBittorrent"),
+      QMessageBox confirmBox(QMessageBox::Question, tr("Exiting qBittorrent"),
                              tr("Some files are currently transferring.\nAre you sure you want to quit qBittorrent?"),
                              QMessageBox::NoButton, this);
       QPushButton *noBtn = confirmBox.addButton(tr("No"), QMessageBox::NoRole);