Changed C++ comments to C comments.

bacnet-stack/src/bacdevobjpropref.c

@@ -230,5 +230,5 @@ int main(
     return 0;
 }
 
-#endif // TEST_DEV_ID_PROP_REF
-#endif // TEST
+#endif /* TEST_DEV_ID_PROP_REF */
+#endif /* TEST */

bacnet-stack/src/bacpropstates.c

@@ -428,5 +428,5 @@ int main(
     return 0;
 }
 
-#endif // TEST_PROP_STATES
-#endif // TEST
+#endif /* TEST_PROP_STATES */
+#endif /* TEST */

bacnet-stack/src/event.c

@@ -1515,5 +1515,5 @@ int main(
     return 0;
 }
 
-#endif // TEST_EVENT
-#endif // TEST
+#endif /* TEST_EVENT */
+#endif /* TEST */

bacnet-stack/src/timestamp.c

@@ -297,5 +297,5 @@ int main(
     return 0;
 }
 
-#endif // TEST_TIME_STAMP
-#endif // TEST
+#endif /* TEST_TIME_STAMP */
+#endif /* TEST */