lammps/examples/USER/colvars/out2.colvars.state

configuration {
  step          300
  dt 2.000000e+00
  version 2018-11-16
}

colvar {
  name one
  x  9.95315918568411e+00
}

colvar {
  name two
  x  9.79318883680258e+00
}

restraint {
  configuration {
    step 300
    name h_pot
  }
}