Surround top-level function and class definitions with two blank lines.

lib/ansible/utils/hashing.py

@@ -69,6 +69,7 @@ def secure_hash(filename, hash_func=sha1):
         raise AnsibleError("error while accessing the file %s, error was: %s" % (filename, e))
     return digest.hexdigest()
 
+
 # The checksum algorithm must match with the algorithm in ShellModule.checksum() method
 checksum = secure_hash
 checksum_s = secure_hash_s