PVS-Studio warning V624 for OpenMS

bool PosteriorErrorProbabilityModel::fit(
  std::vector<double> & search_engine_scores)
{
  ....
  incorrectly_assigned_fit_param_.A =
    1 / sqrt(2 * 3.14159 *
             pow(incorrectly_assigned_fit_param_.sigma, 2));
  ....
}

This suspicious code was found in OpenMS project by PVS-Studio static code analyzer.
Warning message is:
V624 The constant 3.14159 is being utilized. The resulting value could be inaccurate. Consider using the M_PI constant from <math.h>. posteriorerrorprobabilitymodel.c 92

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