Log Message:
security/opendnssec2: Work around a concurrency error + two cosmetic fixes.

 * Adopt the suggested patch from
   https://issues.opendnssec.org/browse/SUPPORT-278
   for what looks like a concurrency error in interfacing
   to the HSM module.
 * Give correct upper-case/lower-case hint if command
   is not configured in the error message.
 * Be a bit more verbose about which zone isn't found if
   indeed it isn't found.

Bump PKGREVISION.