Fix style (II)

kernel_hardening_checker/__init__.py

@@ -23,7 +23,7 @@ from .engine import populate_with_data, perform_checks, override_expected_value
 
 def _open(file: str, *args, **kwargs):
     open_method = open
-    if file.endswith(".gz"):
+    if file.endswith('.gz'):
         open_method = gzip.open
 
     return open_method(file, *args, **kwargs)

setup.py

@@ -3,7 +3,7 @@
 from setuptools import setup
 
 about = {}
-with open("kernel_hardening_checker/__about__.py") as f:
+with open('kernel_hardening_checker/__about__.py') as f:
     exec(f.read(), about)
 
 print('v: "{}"'.format(about['__version__']))