* gl_anylinked_list2.h [lint] (gl_linked_iterator)

* gl_anylinked_list2.h [lint] (gl_linked_iterator)
(gl_linked_iterator_from_to): Initialize struct completely.
* gl_anytree_list2.h [lint] (gl_tree_iterator): Likewise.
(gl_tree_iterator_from_to): Likewise
* gl_anytree_oset.h [lint] (gl_tree_iterator): Likewise.
* gl_array_list.c [lint] (gl_array_iterator)
(gl_array_iterator_from_to): Likewise.
* gl_array_oset.c [lint] (gl_array_iterator): Likewise.
* gl_carray_list.c [lint] (gl_carray_iterator)
(gl_carray_iterator_from_to): Likewise.