Fix wrong variable name

include/field_player_avatar.h

@@ -63,6 +63,6 @@ bool32 sub_808D1B4(void);
 bool32 sub_808D1E8(void);
 void SetPlayerInvisibility(bool8 invisible);
 u8 player_get_pos_including_state_based_drift(s16 *x, s16 *y);
-void StartFishing(u8 taskId);
+void StartFishing(u8 rod);
 
 #endif // GUARD_FIELD_PLAYER_AVATAR_H