Cleanup imports in adhoc/blosc_memleak_check.py (#408)

* Include space for new release notes

* Tidy `import`s in memleak script

Author: jakirkham

adhoc/blosc_memleak_check.py

@@ -1,13 +1,11 @@
 import sys
 
-
-import numcodecs as codecs
-from numcodecs import blosc
+import numcodecs
 import numpy as np
 from numpy.testing import assert_array_equal
 
 
-codec = codecs.Blosc()
+codec = numcodecs.Blosc()
 data = np.arange(int(sys.argv[1]))
 for i in range(int(sys.argv[2])):
     enc = codec.encode(data)

docs/release.rst

@@ -7,6 +7,27 @@ Release notes
     # re-indented so that it does not show up in the notes.
 
 
+.. _unreleased:
+
+Unreleased
+----------
+
+Enhancements
+~~~~~~~~~~~~
+
+*
+
+Fix
+~~~
+
+*
+
+Maintenance
+~~~~~~~~~~~
+
+* Cleanup ``import``s in ``adhoc/blosc_memleak_check.py``
+  By :user:`John Kirkham <jakirkham>`, :issue:`408`.
+
 .. _release_0.11.0:
 
 0.11.0