updated Doxyfile

properly close all doxygen groups
fixed remaining doxygen warnings

src/charon/plugins/nm/nm_creds.h

@@ -76,4 +76,4 @@ struct nm_creds_t {
  */
 nm_creds_t *nm_creds_create();
 
-#endif /* NM_CREDS_H_ @}*/
+#endif /** NM_CREDS_H_ @}*/

src/charon/plugins/nm/nm_plugin.h

@@ -46,4 +46,4 @@ struct nm_plugin_t {
  */
 plugin_t *plugin_create();
 
-#endif /* NM_PLUGIN_H_ @}*/
+#endif /** NM_PLUGIN_H_ @}*/

src/charon/plugins/nm/nm_service.h

@@ -52,4 +52,4 @@ GType nm_strongswan_plugin_get_type(void);
 
 NMStrongswanPlugin *nm_strongswan_plugin_new(nm_creds_t *creds);
 
-#endif /* NM_SERVICE_H_ */
+#endif /** NM_SERVICE_H_ @}*/