Enable clang-tidy as a sanity check, fix up all known failures

1 files changed, 3 insertions, 3 deletions

diff --git a/test/core/end2end/end2end_test_utils.cc b/test/core/end2end/end2end_test_utils.cc
index 35f086a7f6..51d2730f0e 100644
--- a/test/core/end2end/end2end_test_utils.cc
+++ b/test/core/end2end/end2end_test_utils.cc
@@ -27,19 +27,19 @@ const char* get_host_override_string(const char* str,
   if (config.feature_mask & FEATURE_MASK_SUPPORTS_AUTHORITY_HEADER) {
     return str;
   } else {
-    return NULL;
+    return nullptr;
   }
 }
 
 const grpc_slice* get_host_override_slice(const char* str,
                                           grpc_end2end_test_config config) {
   const char* r = get_host_override_string(str, config);
-  if (r != NULL) {
+  if (r != nullptr) {
     static grpc_slice ret;
     ret = grpc_slice_from_static_string(r);
     return &ret;
   }
-  return NULL;
+  return nullptr;
 }
 
 void validate_host_override_string(const char* pattern, grpc_slice str,