- String refAtomsAlphaOnly = "("+getAtomSpec(refAtoms, specType)+" and (altloc '' or altloc 'a'))";
- String atomSpec2AlphaOnly = "("+getAtomSpec(atomSpec, specType)+" and (altloc '' or altloc 'a'))";
+ String refAtomsAlphaOnly = "(" + getAtomSpec(refAtoms, specType)
+ + " and (altloc '' or altloc 'a'))";
+ String atomSpec2AlphaOnly = "(" + getAtomSpec(atomSpec, specType)
+ + " and (altloc '' or altloc 'a'))";