syslog-ng: bump config file version to 3.8
syslog-ng: bump config file version to 3.8

Bump config file version from 3.6 to 3.8.  Checking
syntax showed no errors in config file.

Signed-off-by: Bill Pittman <43ac99c9c99efa205ddaaebf4c7bd970d58e135c@ni.com>

ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt