(parse_tag_body): Deleted function.
(parse_acl_entry): Follow new parser function conventions. Use
spki_parse_tag, spki_parse_skip and spki_parse_end.
(spki_acl_parse): Adapt to new conventions.
(parse_skip_optional): Deleted function.
(spki_cert_parse_body): Use spki_parse_tag.

Rev: src/spki/certificate.c:1.9
Rev: src/spki/certificate.h:1.9