Fix trivial quiver doc typo.

anntzer · anntzer · commit 6d342f09867d · 2020-12-29T18:28:14.000+01:00
diff --git a/lib/matplotlib/quiver.py b/lib/matplotlib/quiver.py
@@ -84,7 +84,7 @@
     use *color* instead.  The size of *C* must match the number of arrow
     locations.
 
-units : {'width', 'height', 'dots', 'inches', 'x', 'y' 'xy'}, default: 'width'
+units : {'width', 'height', 'dots', 'inches', 'x', 'y', 'xy'}, default: 'width'
     The arrow dimensions (except for *length*) are measured in multiples of
     this unit.
 
