Fix syntax error and missing | operator

skimage/exposure/tests/test_exposure.py

@@ -211,7 +211,7 @@ def test_adapthist_grayscale():
     img = skimage.img_as_float(data.astronaut())
     img = rgb2gray(img)
     img = np.dstack((img, img, img))
-    with expected_warnings(['precision loss|non-contiguous input]):
+    with expected_warnings(['precision loss|non-contiguous input']):
         adapted = exposure.equalize_adapthist(img, 10, 9, clip_limit=0.01,
                                               nbins=128)
     assert_almost_equal = np.testing.assert_almost_equal

skimage/morphology/tests/test_grey.py

@@ -175,7 +175,7 @@ def test_3d_fallback_white_tophat():
     with expected_warnings(['operator.*deprecated|\A\Z']):
         new_image = grey.white_tophat(image)
     footprint = ndimage.generate_binary_structure(3,1)
-    with expected_warnings(['operator.*deprecated\A\Z']):
+    with expected_warnings(['operator.*deprecated|\A\Z']):
         image_expected = ndimage.white_tophat(image,footprint=footprint)
     testing.assert_array_equal(new_image, image_expected)