updated Doxyfile

properly close all doxygen groups
fixed remaining doxygen warnings

src/libstrongswan/plugins/random/random_plugin.h

@@ -44,4 +44,4 @@ struct random_plugin_t {
  */
 plugin_t *plugin_create();
 
-#endif /* RANDOM_PLUGIN_H_ @}*/
+#endif /** RANDOM_PLUGIN_H_ @}*/

src/libstrongswan/plugins/random/random_rng.h

@@ -17,7 +17,7 @@
  
 /**
  * @defgroup random_rng random_rng
- * @{ @ingroup utils
+ * @{ @ingroup random_p
  */
 
 #ifndef RANDOM_RNG_H_
@@ -46,4 +46,4 @@ struct random_rng_t {
  */
 random_rng_t *random_rng_create(rng_quality_t quality);
 
-#endif /*RANDOM_RNG_H_ @} */
+#endif /** RANDOM_RNG_H_ @} */