Log Message:
Update sysutils/collectd to 5.7.2.

- Build system: The Notify Email plugin is no longer linked with
  indirect dependencies.
- collectd: A race condition when calculating a metric's rate has been
  fixed.
- AMQP, Exec, UnixSock, Write Kafka plugins: Parsing of the PUTVAL
  command with multiple values has been fixed.
- AMQP plugin: The "ExchangeType" option is now also valid for
  publishers.
- BIND plugin: Fix parsing of the sample time provided by BIND.
  Previously, the time was assumed to be in the local timezone when in
  fact it was in UTC.
- BIND plugin: Memory leaks have been fixed.
- cURL-JSON plugin: Handling of arrays has been fixed.
- DPDKStat plugin: Error handling during initialization has been
  improved.
- DPDKStat plugin: Handling of a number of metrics has been improved,
  for example "rx_q0bytes".
- Intel RDT plugin: Configuration handling has been changed to be more
  graceful.
- Log Logstash plugin: If writing the log entry fails, print it to
  "STDERR" instead.
- LogFile plugin: If writing to the file fails, print log messages on
  "STDERR" instead.
- memcachec, Tail plugins: A resource leak in the matching
  infrastructure has been fixed.
- MQTT plugin: Invalid symbols in topic names are now replaced and a
  resource leak has been fixed.
- Network plugin: A potential endless-loop has been fixed. This can be
  triggered remotely by sending a signed network packet to a server
  which is not set up to check signatures.
- Perl plugin: A potential double-free has been fixed.
- Processes plugin: A compilation error on AIX has been fixed.
- SMART plugin: A check for the "CAP_SYS_RAWIO" capability has been
  added.
- Write Graphite plugin: Error handling in the case that calculating a
  metric's rate fails has been improved. Previously, the raw counter
  values were sent to Graphite.
- Write Prometheus plugin: An incorrect use of "realloc(3)" has been
  fixed.