json: Fix minor things and update the README

README.md

@@ -28,8 +28,8 @@ Please don't cry if my Python code looks like C. I'm just a kernel developer.
 
 ### Usage
 ```
-#usage: kconfig-hardened-check.py [-h] [-p {X86_64,X86_32,ARM64,ARM}]
-                                 [-c CONFIG] [--debug]
+usage: kconfig-hardened-check.py [-h] [-p {X86_64,X86_32,ARM64,ARM}]
+                                 [-c CONFIG] [--debug] [--json]
 
 Checks the hardening options in the Linux kernel config
 
@@ -40,6 +40,7 @@ optional arguments:
   -c CONFIG, --config CONFIG
                         check the config_file against these preferences
   --debug               enable internal debug mode
+  --json                print results in JSON format
 
 ```
 

kconfig-hardened-check.py

@@ -451,13 +451,12 @@ def check_config_file(fname):
         if debug_mode:
             known_options = [opt.name for opt in checklist]
             for option, value in parsed_options.items():
-                if option not in known_options and not json_mode:
+                if option not in known_options:
                     print("DEBUG: dunno about option {} ({})".format(option, value))
 
         print_checks()
 
 
-
 if __name__ == '__main__':
     parser = ArgumentParser(description='Checks the hardening options in the Linux kernel config')
     parser.add_argument('-p', '--print', choices=supported_archs,
@@ -467,7 +466,7 @@ if __name__ == '__main__':
     parser.add_argument('--debug', action='store_true',
                         help='enable internal debug mode')
     parser.add_argument('--json', action='store_true',
-                        help='print results in json format')
+                        help='print results in JSON format')
     args = parser.parse_args()
 
     if args.debug: