remove stderrthreshold flag, use absl globals method

examples/cpp/golomb_sat.cc

@@ -28,7 +28,9 @@
 #include <cstdio>
 #include <vector>
 
+#include "absl/base/log_severity.h"
 #include "absl/flags/flag.h"
+#include "absl/log/globals.h"
 #include "absl/strings/str_format.h"
 #include "google/protobuf/text_format.h"
 #include "ortools/base/init_google.h"
@@ -120,7 +122,7 @@ void GolombRuler(int size) {
 }  // namespace operations_research
 
 int main(int argc, char** argv) {
-  absl::SetFlag(&FLAGS_stderrthreshold, 0);
+  absl::SetStderrThreshold(absl::LogSeverityAtLeast::kInfo);
   InitGoogle(argv[0], &argc, &argv, true);
 
   if (absl::GetFlag(FLAGS_size) != 0) {