Fixed some tab-induced disalignments

Charras beat me on fixing the include/sch_item_struct.h include issue from 4069

3d-viewer/3d_draw.cpp

@@ -998,7 +998,6 @@ void D_PAD::Draw3D( EDA_3D_CANVAS* glcanvas )
             polyPadShape.insert( polyPadShape.end(), holecornersBuffer.begin(),
                                  holecornersBuffer.end() );
         }
-
         break;
 
     case PAD_RECT: