Fix docstring interpolation

dstansby · dstansby · commit 0c0d30b844ef · 2019-01-01T16:46:42.000Z
diff --git a/lib/matplotlib/axes/_axes.py b/lib/matplotlib/axes/_axes.py
@@ -860,7 +860,7 @@ def axline(self, slope, intercept, **kwargs):
         Valid kwargs are :class:`~matplotlib.lines.Line2D` properties,
         with the exception of 'transform':
 
-        %(Line2D)s
+        %(_Line2D_docstr)s
 
         Examples
         --------
