coverity#705261 Missing break in switch, assuming its intentional

Change-Id: Ia19f7790871dec7022c5d1f57f082638b70403fb

svx/source/fmcomp/gridctrl.cxx

@@ -2806,6 +2806,7 @@ void DbGridControl::Command(const CommandEvent& rEvt)
                 return;
             }
         }
+        //fall-through
         default:
             DbGridControl_Base::Command(rEvt);
     }