Potential Logging Overhead due to regular expression #4211

LOG_DEBUG's core code path is as follow:

• LOG_DEBUG
• LOG(mamba::log_level::debug)
• mamba::logging::MessageLogger(log_level).stream()
• std::ostream::operator<< chain for message parts ("..." << x << ...)
• mamba::logging::MessageLogger::~MessageLogger()
• make_safe_log_record(...)
• Console::hide_secrets(...)
• prepend(...)
• branch:
  • if !message_logger_use_buffer && Console::is_available():
    • MessageLogger::emit(...)
    • mamba::logging::log(...)
    • call_log_handler_if_existing(&AnyLogHandler::log, ...)
    • get_log_handler()
    • AnyLogHandler::log(...)
    • AnyLogHandler::Wrapper<T>::log(...)
    • as_ref(object).log(...) (concrete registered handler)
  • else (buffered path):
    • message_logger_buffer->ready_records()
    • std::vector<LogRecord>::push_back(...)
    • later via MessageLogger::print_buffer(...):
      • MessageLogger::emit(...) for each buffered record
      • then the same dispatch chain as above