replace "container_internal" with the shorter "priv"

tests/unordered_map_modifiers_test.h

@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef PHMAP_CONTAINER_INTERNAL_UNORDERED_MAP_MODIFIERS_TEST_H_
-#define PHMAP_CONTAINER_INTERNAL_UNORDERED_MAP_MODIFIERS_TEST_H_
+#ifndef PHMAP_PRIV_UNORDERED_MAP_MODIFIERS_TEST_H_
+#define PHMAP_PRIV_UNORDERED_MAP_MODIFIERS_TEST_H_
 
 #ifdef _MSC_VER
     #pragma warning(push, 0) 
@@ -29,7 +29,7 @@
 #endif
 
 namespace phmap {
-namespace container_internal {
+namespace priv {
 
 template <class UnordMap>
 class ModifiersTest : public ::testing::Test {};
@@ -275,7 +275,7 @@ REGISTER_TYPED_TEST_SUITE_P(ModifiersTest, Clear, Insert, InsertHint,
                             Emplace, EmplaceHint, TryEmplace, TryEmplaceHint,
                             Erase, EraseRange, EraseKey, Swap);
 
-}  // namespace container_internal
+}  // namespace priv
 }  // namespace phmap
 
-#endif  // PHMAP_CONTAINER_INTERNAL_UNORDERED_MAP_MODIFIERS_TEST_H_
+#endif  // PHMAP_PRIV_UNORDERED_MAP_MODIFIERS_TEST_H_