use true/false instead of 1/0 detected and changed by clang-tidy

src/compute_aggregate_atom.cpp

@@ -166,7 +166,7 @@ void ComputeAggregateAtom::compute_peratom()
 
   int change,done,anychange;
 
-  while (1) {
+  while (true) {
     comm->forward_comm_compute(this);
 
     // reverse communication when bonds are not stored on every processor
@@ -175,7 +175,7 @@ void ComputeAggregateAtom::compute_peratom()
       comm->reverse_comm_compute(this);
 
     change = 0;
-    while (1) {
+    while (true) {
       done = 1;
       for (i = 0; i < nlocal; i++) {
         if (!(mask[i] & groupbit)) continue;