silence 0.7 try-without-catch deprecation

stevengj · stevengj · commit 796185a12437 · 2018-06-15T22:42:13.000-04:00
diff --git a/src/PyPlot.jl b/src/PyPlot.jl
@@ -283,6 +283,7 @@ function withfig(actions::Function, f::Figure; clear=true)
     finally
         try
             sca(ax_save) # may fail if axes were overwritten
+        catch
         end
         Main.IJulia.undisplay(f)
     end
