unbound-anchor is compliant with RFC 7958, and the XML format remains unchanged between the old draft and RFC 7958. Update the comments to improve clarity.
/**
* Perform XML parsing of the root-anchors file
- * Its format description can be read here
- * https://data.iana.org/root-anchors/draft-icann-dnssec-trust-anchor.txt
+ * Its format description can be found in RFC 7958.
* It uses libexpat.
* @param xml: BIO with xml data.
* @param now: the current time for checking DS validity periods.