Fix out-of-bounds array access

test/harmonicenergytest.cc

@@ -75,7 +75,7 @@ void test()
     FieldVector<double,dim> pos(0);
     factory.insertVertex(pos);
 
-    for (int i=0; i<domainDim+1; i++) {
+    for (int i=0; i<domainDim; i++) {
         pos = 0;
         pos[i] = 1;
         factory.insertVertex(pos);