fix uninitialized data bug in compute adf

void ComputeADF::init()

{

  double mycutneigh;

  double maxouter;

  double mycutneigh = 0.0;

  double maxouter = 0.0;

  if (!cutflag) {

    if (!force->pair)

      error->all(FLERR,"Compute adf requires a pair style be defined "

                 "or outer cutoff specified");

                 "or an outer cutoff specified");

    rcutinnerj[0] = 0.0;

    rcutinnerk[0] = 0.0;

    rcutouterj[0] = force->pair->cutforce;

    rcutouterk[0] = force->pair->cutforce;

    maxouter = force->pair->cutforce;;

  } else {

    maxouter = 0.0;

    for (int m = 0; m < ntriples; m++) {

      maxouter = MAX(rcutouterj[m],maxouter);

      maxouter = MAX(rcutouterk[m],maxouter);