style: removed extraspaces from docstring

Stefan Mitic · Stefan Mitic · commit 428e2ad2a731 · 2020-03-31T13:23:14.000-04:00
diff --git a/lib/matplotlib/tests/test_axes.py b/lib/matplotlib/tests/test_axes.py
@@ -4167,7 +4167,8 @@ def test_specgram_angle():
 
 
 def test_specgram_fs_none():
-    """ Test axes.specgram when Fs is None, should not throw error """
+    """Test axes.specgram when Fs is None, should not throw error."""
+
     try:
         spec, freqs, t, im = plt.specgram(np.ones(300), Fs=None)
     except Exception as e:
