fix org babel gnuplot loading

scripts/test/test.org

@@ -4,7 +4,7 @@
 ** syntax highlighting
 
 *** graphviz dot
-#+begin_src dot
+#+begin_src dot :file img/src-dot.svg
 digraph G {
   main -> parse -> execute;
   main -> init;
@@ -17,6 +17,10 @@ digraph G {
 }
 #+end_src
 
+#+ATTR_ORG: :width 300
+#+RESULTS:
+[[file:img/src-dot.svg]]
+
 *** gnuplot
 #+begin_src gnuplot :results silent
 reset
@@ -39,6 +43,20 @@ h(x) = 10*sqrt(abs(x))
 plot f(x) w lp lw 1, g(x) w p lw 2, h(x) w l lw 3
 #+end_src
 
+#+NAME: tab-gnuplot
+| 3.75 | 2.5 |
+| 4.43 |   3 |
+|  5.5 |   3 |
+|  3.5 | 3.5 |
+
+#+begin_src gnuplot  :var data=tab-gnuplot :exports results :file img/gnuplot-tab.svg
+set terminal svg size 400,320
+plot data u 1 t "unsorted", \
+     '' u 2 lt 3 t "sorted"
+#+end_src
+
+#+RESULTS:
+[[file:img/gnuplot-tab.svg]]
 
 ** custom header