(spki_string_new): ... old name.
(tag_list): Use const for input and output pointers.
(tag_atom): Likewise.
(tag_range): Likewise.
(spki_tag_release): Use const for some local pointers.
(spki_tag_set_alloc): Use const for one pointer. Renamed from...
(spki_tag_set_new): ... old name.
(atom_prefix): Use const inputs.
(atom_equal): Likewise.
(set_includes): Likewise.
(list_includes): Likewise.
(spki_tag_includes): Likewise.
(prefix_intersect): Use const for prefix argument.
(list_format): Use const input.
(spki_tag_format): Likewise. Also use const for some local pointers.

Rev: spki/ChangeLog:1.14
Rev: spki/tag.c:1.2
Rev: spki/tag.h:1.2