reformat pair_coeff section in buck test for better readability

---

lammps_version: 21 Jul 2020

date_generated: Fri Jul 31 11:39:43 202

date_generated: Fri Jul 31 12:07:29 202

epsilon: 5e-14

prerequisites: ! |

  atom full

  pair_modify mix arithmetic

input_file: in.fourmol

pair_style: buck 8.0

pair_coeff: ! "1 1 170339.505032359 0.166879344173798 13.642356513989 \n1 2 85988.1490021027

  0.116722557424471 0.80085535265993 \n1 3 169866.420176425 0.190286500706475 29.9623467274028

  \n1 4 147160.913151695 0.186942613268455 23.3320434749744 \n1 5 147160.913151695

  0.186942613268455 23.3320434749744 \n2 2 43972.4676803832 0.0665738276248451 0.0138732735747516

  \n2 3 85535.686235147 0.140128612516736 2.39406114840173 \n2 4 45975.8370021332

  0.0331639834863857 0.000214673167591639 \n2 5 74124.142292174 0.136784828511181

  1.79395952625758 \n3 3 169504.649065961 0.213692863412526 60.0617510100503 \n3 4

  146835.114678908 0.210349185259049 47.3225728524629 \n3 5 146835.114678908 0.210349185259049

  47.3225728524629 \n4 4 127198.698386798 0.207005479340455 37.2289658745028 \n4 5

  127198.698386798 0.207005479340455 37.2289658745028 \n5 5 127198.698386798 0.207005479340455

  37.2289658745028 \n"

pair_coeff: ! |

  1 1 170339.505032359 0.166879344173798 13.642356513989

  1 2 85988.1490021027 0.116722557424471 0.80085535265993

  1 3 169866.420176425 0.190286500706475 29.9623467274028

  1 4 147160.913151695 0.186942613268455 23.3320434749744

  1 5 147160.913151695 0.186942613268455 23.3320434749744

  2 2 43972.4676803832 0.0665738276248451 0.0138732735747516

  2 3 85535.686235147 0.140128612516736 2.39406114840173

  2 4 45975.8370021332 0.0331639834863857 0.000214673167591639

  2 5 74124.142292174 0.136784828511181 1.79395952625758

  3 3 169504.649065961 0.213692863412526 60.0617510100503

  3 4 146835.114678908 0.210349185259049 47.3225728524629

  3 5 146835.114678908 0.210349185259049 47.3225728524629

  4 4 127198.698386798 0.207005479340455 37.2289658745028

  4 5 127198.698386798 0.207005479340455 37.2289658745028

  5 5 127198.698386798 0.207005479340455 37.2289658745028

extract: ! |

  a 2

  c 2