Use new style of initialisation

nonlinelast.cc

@@ -129,7 +129,7 @@ int main (int argc, char *argv[]) try
     TrustRegionGSStep<MatrixType, VectorType> presmoother,postsmoother;
     mmgStep.setSmoother(&presmoother, &postsmoother);
 
-    mmgStep.setObstacleRestrictor(MandelObstacleRestrictor<VectorType>());
+    mmgStep.setObstacleRestrictor(MandelObstacleRestrictor<VectorType>{});
     mmgStep.setVerbosity(parameterSet.get<NumProc::VerbosityMode>("verbosity"));
 
     // Create a base solver