[syslog-ng] using VARARGS correctly

[Faine, Mark R. (MSFC-IS40)[NICS]]

Syslog-ng 3.19 

block destination d_default(basepath('/var/log/remote/backup') location("") app("") name("")) {
    file("`basepath`/`location`/`app`/${HOST}/${HOST}_`app``__VARARGS__`.log"
    persist-name(`name`) create_dirs(yes)
    flags("threaded", "no-multi-line"));
};

However, when I call it like so:

d_default(basepath(`BASEPATH`) location("$location") app("$app") name('d_default_udp') "$session");

I get a syntax error when checking with --syntax-only

Error parsing block reference, syntax error, unexpected LL_STRING, expecting ')' in /etc/syslog-ng/conf.d/splunk.conf:
23                  categorize_loc();
24                  categorize_app();
25              };
26          };
27          destination {
28---->       d_default(basepath(`BASEPATH`) location("$location") app("$app") name('d_default_udp') "$session");
28---->                                                                                    ^^^^^^^^^^


>From looking at the documentation, it looks like it's a valid way to use it.  $session here is just a number from 0-9 that is set from rewriting a user defined macro from the message's sessionid field.  It's only going to exist for a certain kind of message.

Thanks,
-Mark