LOK: font/back color callback - use sal_Int32 instead of long

Change-Id: I2e2ebc5a12794e9641a6195f07fa4b2d1a7369a9
diff --git a/sfx2/source/control/unoctitm.cxx b/sfx2/source/control/unoctitm.cxx
index bd9fd16..813a48a 100644
--- a/sfx2/source/control/unoctitm.cxx
+++ b/sfx2/source/control/unoctitm.cxx
@@ -1100,7 +1100,7 @@ void SfxDispatchController_Impl::InterceptLOKStateChangeEvent(const SfxObjectShe
    else if (aEvent.FeatureURL.Path == "FontColor" ||
             aEvent.FeatureURL.Path == "BackColor")
    {
        long nColor;
        sal_Int32 nColor = -1;
        aEvent.State >>= nColor;
        aBuffer.append(nColor);
    }