 
     defp normalize_graph_output(graph) do
       graph
-      |> String.replace("├──", "`--")
+      |> String.replace("├──", "|--")
       |> String.replace("└──", "`--")
-      |> String.replace("│", " ")
+      |> String.replace("│", "|")
     end
   end
 

      assert_graph(~w[--source lib/a.ex], """
      lib/a.ex
      `-- lib/b.ex (compile)
          `-- lib/a.ex
          `-- lib/c.ex
              `-- lib/d.ex (compile)
                  `-- lib/e.ex
          `-- lib/e.ex (compile)
      """)
    end

      lib/a.ex
      `-- lib/b.ex (compile)
      lib/b.ex
      |-- lib/a.ex
      |-- lib/c.ex
      `-- lib/e.ex (compile)
      lib/c.ex
      `-- lib/d.ex (compile)
