message: Fix formatting for StatsCalculator string output.
diff: @@ -53,7 +53,7 @@ std::string StatsCalculator::HeaderString(const std::string& title) const {
  << " ==============================" << std::endl;
  InitField(stream, 24) << "[node type]";
  - InitField(stream, 9) << "[start]";
  + InitField(stream, 17) << "[start]";
  InitField(stream, 9) << "[first]";
  InitField(stream, 9) << "[avg ms]";
  InitField(stream, 8) << "[%]";
  @@ -77,7 +77,7 @@ std::string StatsCalculator::ColumnString(const Detail& detail,
  std::stringstream stream;
  InitField(stream, 24) << detail.type;
  - InitField(stream, 9) << start_ms;
  + InitField(stream, 17) << start_ms;
  InitField(stream, 9) << first_time_ms;
  InitField(stream, 9) << avg_time_ms;
  InitField(stream, 7) << percentage << "%";
  