More lint changes from William Rucklidge

Change-Id: Ica72b02f9509f1eb1961b531072826519df3fddb

internal/ceres/dynamic_sparsity_test.cc

@@ -338,7 +338,7 @@ class PointToLineSegmentContourCostFunction : public CostFunction {
 
 class EuclideanDistanceFunctor {
  public:
-  explicit EuclideanDistanceFunctor(const double& sqrt_weight)
+  explicit EuclideanDistanceFunctor(const double sqrt_weight)
       : sqrt_weight_(sqrt_weight) {}
 
   template <typename T>

internal/ceres/iterative_schur_complement_solver.cc

@@ -132,7 +132,8 @@ LinearSolver::Summary IterativeSchurComplementSolver::SolveImpl(
   return summary;
 }
 
-void IterativeSchurComplementSolver::CreatePreconditioner(BlockSparseMatrix* A) {
+void IterativeSchurComplementSolver::CreatePreconditioner(
+    BlockSparseMatrix* A) {
   if (options_.preconditioner_type == IDENTITY ||
       preconditioner_.get() != NULL) {
     return;