Fix lint error

Author: rhpvorderman

tests/test_isal.py

@@ -186,4 +186,4 @@ def test_unused_data_zlib_raw(unused_size, wbits):
     decompressor = isal_zlib.decompressobj(wbits=wbits)
     result = decompressor.decompress(compressed + unused_data)
     assert result == data
-    assert decompressor.unused_data == unused_data
+    assert decompressor.unused_data == unused_data