Added `set parametric' to the g3 example, since this helps earlier versions of gnuplot and doesn't hurt the current version.
Added `set parametric' to the g3 example, since this helps earlier
versions of gnuplot and doesn't hurt the current version.


git-svn-id: 8c9cf565d959f48f2495bfea3c697473c881f37a@51 67c13c2a-ce2d-4362-9fbd-a73952e22801

tschaume/gnuplot-py,tschaume/gnuplot-py