Method getDateTime

src/thundersvm/util/log.cpp:1100–1104

            }

            std::string DateTime::getDateTime(const char* format, const base::SubsecondPrecision* ssPrec) {
                struct timeval currTime;
                gettimeofday(&currTime);
                return timevalToString(currTime, format, ssPrec);
            }

            std::string DateTime::timevalToString(struct timeval tval, const char* format,
                                                  const el::base::SubsecondPrecision* ssPrec) {