coverity#1435838 Uninitialized scalar field

Change-Id: I76446f3d70f3385b78ee382b265439765176f4f5
Reviewed-on: https://gerrit.libreoffice.org/54900Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

svx/source/dialog/dlgctrl.cxx

@@ -626,6 +626,7 @@ BitmapEx& RectCtl::GetRectBitmap()
 RectCtl::RectCtl(SvxTabPage* pPage, RectPoint eRpt, sal_uInt16 nBorder)
     : m_pPage(pPage)
     , nBorderWidth(Application::GetDefaultDevice()->LogicToPixel(Size(nBorder, 0), MapMode(MapUnit::Map100thMM)).Width())
+    , eRP(eRpt)
     , eDefRP(eRpt)
     , pBitmap(nullptr)
     , m_nState(CTL_STATE::NONE)