Merge pull request #13838 from apolcyn/fix_parse_commandline_flags

Use ParseCommandLineFlags in golden file test in the same way that other test binaries use it

test/cpp/codegen/golden_file_test.cc

@@ -22,6 +22,13 @@
 #include <gflags/gflags.h>
 #include <gtest/gtest.h>
 
+// In some distros, gflags is in the namespace google, and in some others,
+// in gflags. This hack is enabling us to find both.
+namespace google {}
+namespace gflags {}
+using namespace google;
+using namespace gflags;
+
 DEFINE_string(
     generated_file_path, "",
     "path to the directory containing generated files compiler_test.grpc.pb.h"
@@ -60,7 +67,7 @@ TEST(GoldenMockFileTest, TestGeneratedMockFile) {
 
 int main(int argc, char** argv) {
   ::testing::InitGoogleTest(&argc, argv);
-  ::google::ParseCommandLineFlags(&argc, &argv, true);
+  ParseCommandLineFlags(&argc, &argv, true);
   if (FLAGS_generated_file_path.empty()) {
     FLAGS_generated_file_path = "gens/src/proto/grpc/testing/";
   }