destroy whitespace

Signed-off-by: Ilkka Ollakka <ileoo@videolan.org>
(cherry picked from commit 0e5461f0789f229a1674a22d24bc74f17bbe866b)
Signed-off-by: Ilkka Ollakka <ileoo@videolan.org>

modules/gui/qt4/ui/sprefs_interface.ui

@@ -379,7 +379,7 @@
          <item row="5" column="1">
           <widget class="QCheckBox" name="sysPop">
            <property name="text">
-            <string> Systray popup when minimized</string>
+            <string>Systray popup when minimized</string>
            </property>
           </widget>
          </item>