fix formatting generated files (best effort)

- update file generator scripts / templates so generated files adhere
  to clang-format
- A few exceptions are not fixed, where the file generation results in
  lines of different width. To properly fix this would make the code
  more complicated and it's not that important for generated files
  anyway.
- note that generated files are excluded in ./scripts/format_all.sh

Change-Id: I4f42c83d1fec01242eada5e7ce6c1a5192234d37
diff --git a/internal/ceres/generate_bundle_adjustment_tests.py b/internal/ceres/generate_bundle_adjustment_tests.py
index a3469eb..7b0caa3 100644
--- a/internal/ceres/generate_bundle_adjustment_tests.py
+++ b/internal/ceres/generate_bundle_adjustment_tests.py
@@ -130,24 +130,22 @@
 
 TEST_F(BundleAdjustmentTest,
        %(test_class_name)s) {  // NOLINT
-   BundleAdjustmentProblem bundle_adjustment_problem;
-   Solver::Options* options =
-     bundle_adjustment_problem.mutable_solver_options();
-   options->num_threads = %(num_threads)s;
-   options->linear_solver_type = %(linear_solver)s;
-   options->sparse_linear_algebra_library_type = %(sparse_backend)s;
-   options->preconditioner_type = %(preconditioner)s;
-   if (%(ordering)s) {
-     options->linear_solver_ordering.reset();
-   }
-   Problem* problem = bundle_adjustment_problem.mutable_problem();
-   RunSolverForConfigAndExpectResidualsMatch(*options, problem);
+  BundleAdjustmentProblem bundle_adjustment_problem;
+  Solver::Options* options = bundle_adjustment_problem.mutable_solver_options();
+  options->num_threads = %(num_threads)s;
+  options->linear_solver_type = %(linear_solver)s;
+  options->sparse_linear_algebra_library_type = %(sparse_backend)s;
+  options->preconditioner_type = %(preconditioner)s;
+  if (%(ordering)s) {
+    options->linear_solver_ordering.reset();
+  }
+  Problem* problem = bundle_adjustment_problem.mutable_problem();
+  RunSolverForConfigAndExpectResidualsMatch(*options, problem);
 }
 
 }  // namespace internal
 }  // namespace ceres
-%(preprocessor_conditions_end)s
-""")
+%(preprocessor_conditions_end)s""")
 
 def camelcasify(token):
   """Convert capitalized underscore tokens to camel case"""