fixes test case

Author: poke1024

mathics/builtin/graphics.py

@@ -417,7 +417,7 @@ class Graphics(Builtin):
 
     In 'TeXForm', 'Graphics' produces Asymptote figures:
     >> Graphics[Circle[]] // TeXForm
-     =
+     = 
      . \begin{asy}
      . size(5.8556cm, 5.8333cm);
      . add((175,175,175,0,0,175)*(new picture(){picture s=currentpicture,t=new picture;currentpicture=t;draw(ellipse((0,0),1,1), rgb(0, 0, 0)+linewidth(0.0038095));currentpicture=s;return t;})());