Fix off-by-one in sequence drawing.

Timeline/Control_Sequence.C

@@ -146,7 +146,7 @@ Control_Sequence::draw ( void )
     fl_push_clip( x(), y(), w(), h() );
 
     /* draw the box with the ends cut off. */
-    draw_box( box(), x() - Fl::box_dx( box() ), y(), w() + Fl::box_dw( box() ), h(), color() );
+    draw_box( box(), x() - Fl::box_dx( box() ), y(), w() + Fl::box_dw( box() ) + 1, h(), color() );
 
     const int bx = x();
     const int by = y() + Fl::box_dy( box() );

Timeline/Sequence.C

@@ -84,7 +84,7 @@ Sequence::draw ( void )
     fl_push_clip( x(), y(), w(), h() );
 
     /* draw the box with the ends cut off. */
-    draw_box( box(), x() - Fl::box_dx( box() ), y(), w() + Fl::box_dw( box() ), h(), color() );
+    draw_box( box(), x() - Fl::box_dx( box() ), y(), w() + Fl::box_dw( box() ) + 1, h(), color() );
 
     int X, Y, W, H;