Clean up test

dune/solvers/test/cgsteptest.cc

@@ -96,11 +96,14 @@ struct CGTestSuite
             }
         }
 
+        const auto verbosity = Solver::QUIET;
+        const bool relativeErrors = false;
+
         // Test 2: CGSolver (dune-solvers)
         {
             CGSolver<Matrix,Vector> solver(&A, &u2, &rhs2, nullptr,
                                            maxIterations, stepTol, &energyNorm,
-                                           Solver::QUIET, false); // absolute error
+                                           verbosity, relativeErrors);
             solver.check();
             solver.preprocess();
             solver.solve();
@@ -118,7 +121,7 @@ struct CGTestSuite
         {
             Dune::Solvers::CGStep<Matrix,Vector> cgStep(A, u3, rhs3);
             ::LoopSolver<Vector> solver(&cgStep, maxIterations, stepTol, &energyNorm,
-                                      Solver::QUIET, false); // absolute error
+                                        verbosity, relativeErrors);
             solver.check();
             solver.preprocess();
             solver.solve();