[Qt] 2 minor translation changes

src/qt/bitcoin.cpp

@@ -359,7 +359,7 @@ void BitcoinApplication::requestShutdown()
     QWidget *shutdownWindow = new QWidget();
     QVBoxLayout *layout = new QVBoxLayout();
     layout->addWidget(new QLabel(
-        tr("Bitcoin Core is shutting down...\n") +
+        tr("Bitcoin Core is shutting down...") + "<br /><br />" +
         tr("Do not shut down the computer until this window disappears.")));
     shutdownWindow->setLayout(layout);
 

src/qt/forms/optionsdialog.ui

@@ -473,7 +473,7 @@
         <item>
          <widget class="QLabel" name="overriddenByCommandLineInfoLabel">
           <property name="text">
-           <string>Active command-line options that override above options: </string>
+           <string>Active command-line options that override above options:</string>
           </property>
           <property name="textFormat">
            <enum>Qt::PlainText</enum>