+ * "SPKI:SHA2-256:" or "SPKI:SHA2-512:" depending on the hash type. These fingerprints
+ * are not supported on servers running charybdis 3.5.3 or earlier.
+ *
+ * To generate a fingerprint from a certificate file, please use the mkfingerprint utility
+ * program located in the bin/ subdirectory of your IRCd installation. Running it with no
+ * arguments will give you a brief usage message; it takes method and filename arguments.