Fix a tooltip

src/ui/qgsnewgeopackagelayerdialogbase.ui

@@ -448,7 +448,7 @@
           <item row="5" column="2">
            <widget class="QCheckBox" name="mCheckBoxCreateSpatialIndex">
             <property name="toolTip">
-             <string>Add an integer id field as the primary key for the new layer</string>
+             <string>Create a spatial index for this layer</string>
             </property>
             <property name="text">
              <string>Create a spatial index</string>