replace "container_internal" with the shorter "priv"

tests/unordered_set_members_test.h

@@ -12,15 +12,15 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef PHMAP_CONTAINER_INTERNAL_UNORDERED_SET_MEMBERS_TEST_H_
-#define PHMAP_CONTAINER_INTERNAL_UNORDERED_SET_MEMBERS_TEST_H_
+#ifndef PHMAP_PRIV_UNORDERED_SET_MEMBERS_TEST_H_
+#define PHMAP_PRIV_UNORDERED_SET_MEMBERS_TEST_H_
 
 #include <type_traits>
 #include "gmock/gmock.h"
 #include "gtest/gtest.h"
 
 namespace phmap {
-namespace container_internal {
+namespace priv {
 
 template <class UnordSet>
 class MembersTest : public ::testing::Test {};
@@ -77,7 +77,7 @@ TYPED_TEST_P(MembersTest, BeginEnd) {
 
 REGISTER_TYPED_TEST_SUITE_P(MembersTest, Typedefs, SimpleFunctions, BeginEnd);
 
-}  // namespace container_internal
+}  // namespace priv
 }  // namespace phmap
 
-#endif  // PHMAP_CONTAINER_INTERNAL_UNORDERED_SET_MEMBERS_TEST_H_
+#endif  // PHMAP_PRIV_UNORDERED_SET_MEMBERS_TEST_H_