Update src/newton_solver.cpp

Co-authored-by: Fabian Fröhlich <fabian.frohlich@crick.ac.uk>

src/newton_solver.cpp

@@ -120,7 +120,7 @@ void NewtonSolver::solveLinearSystem(AmiVector& rhs) {
 }
 
 void NewtonSolver::reinitialize() {
-    // dense solver does not need reinitialization
+    // direct solvers does not need reinitialization
     if (auto s = dynamic_cast<SUNLinSolKLU*>(linsol_.get())) {
         try {
             s->reInit(s->getMatrix().capacity(), SUNKLU_REINIT_PARTIAL);