Fix glog includes and include sorting order.

Change-Id: I0ec85218e82d1714279d41f7635104d480fb91c3
diff --git a/internal/ceres/system_test.cc b/internal/ceres/system_test.cc
index 88b2f91..b771268 100644
--- a/internal/ceres/system_test.cc
+++ b/internal/ceres/system_test.cc
@@ -43,17 +43,17 @@
 #include <cstdlib>
 #include <string>
 
-#include <glog/logging.h>
+#include "ceres/autodiff_cost_function.h"
 #include "ceres/file.h"
-#include "gflags/gflags.h"
-#include "gtest/gtest.h"
+#include "ceres/problem.h"
+#include "ceres/rotation.h"
+#include "ceres/solver.h"
 #include "ceres/stringprintf.h"
 #include "ceres/test_util.h"
-#include "ceres/autodiff_cost_function.h"
-#include "ceres/problem.h"
-#include "ceres/solver.h"
 #include "ceres/types.h"
-#include "ceres/rotation.h"
+#include "gflags/gflags.h"
+#include "glog/logging.h"
+#include "gtest/gtest.h"
 
 DECLARE_string(test_srcdir);