spines: limit range in example

svn path=/trunk/matplotlib/; revision=8046

Author: astraw

examples/pylab_examples/spine_placement_demo.py

@@ -143,4 +143,7 @@ def adjust_spines(ax,spines):
 for artist in (line1,line2):
     artist.set_clip_on(False)
 
+# adjust spine to be within ticks
+ax.spines['left'].set_bounds( -1, 1 )
+
 show()