message: test: fix nit after
  Fix some nit for PR
  Risk Level: Low
  Testing:
  unit
  Docs Changes:
  N/A
  Release Notes:
  N/A
diff: @@ -441,6 +441,8 @@ TEST_F(HttpHealthCheckerImplTest, SuccessWithMultipleHostSets) {
  }
  TEST_F(HttpHealthCheckerImplTest, SuccessServiceCheck) {
  + const std::string host = "fake_cluster";
  + const std::string path = "/healthcheck";
  setupServiceValidationHC();
  EXPECT_CALL(runtime_.snapshot_, featureEnabled("health_check.verify_cluster", 100))
  .WillOnce(Return(true));
  @@ -459,8 +461,8 @@ TEST_F(HttpHealthCheckerImplTest, SuccessServiceCheck) {
  EXPECT_TRUE(headers.Path());
  EXPECT_NE(nullptr, headers.Host());
  EXPECT_NE(nullptr, headers.Path());
  - EXPECT_EQ(headers.Host()->value().c_str(), std::string("fake_cluster"));
  - EXPECT_EQ(headers.Path()->value().c_str(), std::string("/healthcheck"));
  + EXPECT_EQ(headers.Host()->value().c_str(), host);
  + EXPECT_EQ(headers.Path()->value().c_str(), path);
  }));
  health_checker_->start();
  @@ -475,7 +477,8 @@ TEST_F(HttpHealthCheckerImplTest, SuccessServiceCheck) {
  }
  TEST_F(HttpHealthCheckerImplTest, SuccessServiceCheckWithCustomHostValue) {
  - std::string host = "www.envoyproxy.io";
  + const std::string host = "www.envoyproxy.io";
  + const std::string path = "/healthcheck";
  setupServiceValidationWithCustomHostValueHC(host);
  // requires non-empty `service_name` in config.
  EXPECT_CALL(runtime_.snapshot_, featureEnabled("health_check.verify_cluster", 100))
  @@ -495,8 +498,8 @@ TEST_F(HttpHealthCheckerImplTest, SuccessServiceCheckWithCustomHostValue) {
  EXPECT_TRUE(headers.Path());
  EXPECT_NE(nullptr, headers.Host());
  EXPECT_NE(nullptr, headers.Path());
  - EXPECT_EQ(headers.Host()->value().c_str(), std::string(host));
  - EXPECT_EQ(headers.Path()->value().c_str(), std::string("/healthcheck"));
  + EXPECT_EQ(headers.Host()->value().c_str(), host);
  + EXPECT_EQ(headers.Path()->value().c_str(), path);
  }));
  health_checker_->start();
  