Fixed lsearch related arguments.

include/list.h

@@ -89,6 +89,15 @@ void list_swap(list_t *list, size_t i1, size_t i2);
  */
 void *list_get(list_t *list, size_t index);
 
+/*
+ * Gets an element of a list and dereferences it.
+ * For example, if you have a list of char *, this function
+ * will return a char * instead of a char **, unlike list_get.
+ * index must be less than the length of the list.
+ * list must be a list of pointers.
+ */
+void *list_getp(list_t *list, size_t index);
+
 /*
  * Sorts the list using the stdlib qsort() function.
  */