fix: re-active cppcheck

The previous logic had an intersection of black & white list for exception,
and only warnings that got in the white list have been shown.

Everything that has not been matched with whitelist should be filtered
by blacklist (exceptions), but not only whitelist matches

Author: knst

test/lint/lint-cppcheck-dash.py

@@ -132,7 +132,9 @@ def main():
 
     unique_sorted_lines = sorted(set(dependencies_output.stdout.splitlines()))
     for line in unique_sorted_lines:
-        if re.search(enabled_regexp, line) and not re.search(ignored_regexp, line) and re.search(files_regexp, line):
+        if not re.search(files_regexp, line):
+            continue
+        if re.search(enabled_regexp, line) or not re.search(ignored_regexp, line):
             warnings.append(line)
 
     if warnings: