Locator settings: replicate tool tip also on spinbox

So the tool tip is visible for hovering over the label and the control
itself.

Task-number: QTCREATORBUG-7014
Change-Id: I993803f45207040e4b3f316fd26d75875fac1188
Reviewed-by: Robert Loehning <robert.loehning@digia.com>

src/plugins/locator/settingspage.cpp

@@ -60,6 +60,7 @@ QWidget *SettingsPage::createPage(QWidget *parent)
 
     m_page = new QWidget(parent);
     m_ui.setupUi(m_page);
+    m_ui.refreshInterval->setToolTip(m_ui.refreshIntervalLabel->toolTip());
     connect(m_ui.filterList, SIGNAL(currentItemChanged(QListWidgetItem*,QListWidgetItem*)),
             this, SLOT(updateButtonStates()));
     connect(m_ui.filterList, SIGNAL(itemActivated(QListWidgetItem*)),