Avocado 67.0 [*] introduced the avocado.utils.archive module which
provides handling of gzip files. Use the gzip_uncompress() method.

[*] https://avocado-framework.readthedocs.io/en/67.0/api/utils/avocado.utils.html#avocado.utils.archive.gzip_uncompress

Suggested-by: Cleber Rosa <crosa@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
v2: New patch replacing the gunzip() refactor
---
 tests/acceptance/boot_linux_console.py | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/tests/acceptance/boot_linux_console.py b/tests/acceptance/boot_linux_console.py
index 4b419b0559..67d7e96d98 100644
--- a/tests/acceptance/boot_linux_console.py
+++ b/tests/acceptance/boot_linux_console.py
@@ -145,10 +145,7 @@ class BootLinuxConsole(Test):
         initrd_hash = 'bf806e17009360a866bf537f6de66590de349a99'
         initrd_path_gz = self.fetch_asset(initrd_url, asset_hash=initrd_hash)
         initrd_path = self.workdir + "rootfs.cpio"
-
-        with gzip.open(initrd_path_gz, 'rb') as f_in:
-            with open(initrd_path, 'wb') as f_out:
-                shutil.copyfileobj(f_in, f_out)
+        archive.gzip_uncompress(initrd_path_gz, initrd_path)
 
         self.vm.set_machine('malta')
         self.vm.set_console()
-- 
2.21.0