updated Doxyfile

properly close all doxygen groups
fixed remaining doxygen warnings

src/charon/plugins/kernel_klips/kernel_klips_ipsec.h

@@ -45,4 +45,4 @@ struct kernel_klips_ipsec_t {
  */
 kernel_klips_ipsec_t *kernel_klips_ipsec_create();
 
-#endif /* KERNEL_KLIPS_IPSEC_H_ @} */
+#endif /** KERNEL_KLIPS_IPSEC_H_ @}*/

src/charon/plugins/kernel_klips/kernel_klips_plugin.h

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