imc_purify.sh: better use run_or_exit than logrun
imc_purify.sh: better use run_or_exit than logrun

richardjgowers/csg,junghans/csg,MrTheodor/csg,richardjgowers/csg,junghans/csg,MrTheodor/csg,richardjgowers/csg,MrTheodor/csg,votca/csg,votca/csg,votca/csg,junghans/csg,richardjgowers/csg,MrTheodor/csg,junghans/csg,junghans/csg,richardjgowers/csg,junghans/csg,MrTheodor/csg,votca/csg