enabled and fixed consider-using-sys-exit pylint warnings (#6934)

Author: firewave

.pylintrc

@@ -52,7 +52,6 @@ disable=
         consider-using-in,
         too-many-nested-blocks,
         too-many-public-methods,
-        consider-using-sys-exit,
         chained-comparison,
         too-many-instance-attributes,
         too-many-boolean-expressions,

addons/naming.py

@@ -17,7 +17,7 @@ def validate_regex(expr):
         re.compile(expr)
     except re.error:
         print('Error: "{}" is not a valid regular expression.'.format(expr))
-        exit(1)
+        sys.exit(1)
 
 
 RE_VARNAME = None

htmlreport/cppcheck-htmlreport

@@ -653,7 +653,7 @@ def main() -> None:
         sys.argv[1]
     except IndexError:  # no arguments give, print --help
         parser.print_help()
-        quit()
+        sys.exit(0)
 
     if not options.report_dir:
         parser.error('No report directory set.')