updated Doxyfile

properly close all doxygen groups
fixed remaining doxygen warnings

src/charon/bus/bus.h

@@ -350,4 +350,4 @@ struct bus_t {
  */
 bus_t *bus_create();
 
-#endif /* BUS_H_ @} */
+#endif /** BUS_H_ @}*/

src/charon/bus/listeners/file_logger.h

@@ -59,4 +59,4 @@ struct file_logger_t {
  */
 file_logger_t *file_logger_create(FILE *out);
 
-#endif /* FILE_LOGGER_H_ @} */
+#endif /** FILE_LOGGER_H_ @}*/

src/charon/bus/listeners/sys_logger.h

@@ -61,4 +61,4 @@ struct sys_logger_t {
  */
 sys_logger_t *sys_logger_create(int facility);
 
-#endif /* SYS_LOGGER_H_ @} */
+#endif /** SYS_LOGGER_H_ @}*/