Fix glog includes and include sorting order.

Change-Id: I0ec85218e82d1714279d41f7635104d480fb91c3
diff --git a/internal/ceres/numeric_diff_cost_function_test.cc b/internal/ceres/numeric_diff_cost_function_test.cc
index d86bb58..1b17aa6 100644
--- a/internal/ceres/numeric_diff_cost_function_test.cc
+++ b/internal/ceres/numeric_diff_cost_function_test.cc
@@ -34,14 +34,14 @@
 #include <cmath>
 #include <string>
 #include <vector>
-#include <glog/logging.h>
-#include "gtest/gtest.h"
-#include "ceres/stringprintf.h"
-#include "ceres/test_util.h"
 #include "ceres/cost_function.h"
 #include "ceres/internal/macros.h"
 #include "ceres/internal/scoped_ptr.h"
+#include "ceres/stringprintf.h"
+#include "ceres/test_util.h"
 #include "ceres/types.h"
+#include "glog/logging.h"
+#include "gtest/gtest.h"
 
 namespace ceres {
 namespace internal {