Small fix

include/core/processor/processor_loopclosure_base2.h

-#ifndef _WOLF_PROCESSOR_LOOPCLOSURE_BASE_H
-#define _WOLF_PROCESSOR_LOOPCLOSURE_BASE_H
+#ifndef _WOLF_PROCESSOR_LOOPCLOSURE_BASE2_H
+#define _WOLF_PROCESSOR_LOOPCLOSURE_BASE2_H
 
 // Wolf related headers
 #include "core/processor/processor_base.h"
@@ -22,6 +22,7 @@ struct ProcessorParamsLoopClosure2 : public ProcessorParamsBase
  * This is an abstract class.
  * + You must define the following classes :
  *   - doProcessLoopClosure()
+ *   - addCapture()
  *   - findLoopCandidate()
  *   - createFactors()
  * + You can override the following classes :
@@ -152,4 +153,4 @@ protected:
 
 } // namespace wolf
 
-#endif /* _WOLF_PROCESSOR_LOOPCLOSURE_BASE_H */
+#endif /* _WOLF_PROCESSOR_LOOPCLOSURE_BASE2_H */