where does ssl_print_data() display its output?

I've apiece of an external dissector code where several calls have been made to the function ssl_print_data. I'm not able to find out where the arguments passed to this function are printed out!

I found it defined in the file packet-ssl-utils.c as the following:

void
ssl_print_data(const gchar* name, const guchar* data, size_t len)
{
    size_t i;
    if (!ssl_debug_file)
        return;
    fprintf(ssl_debug_file,"%s[%d]:\n",name, (int) len);
    for (i=0; i< len; i++) {
        if ((i>0) && (i%16 == 0))
            fprintf(ssl_debug_file,"\n");
        fprintf(ssl_debug_file,"%.2x ",data[i]&255);
    }
    fprintf(ssl_debug_file,"\n");
}

I also found ssl_debug_file is defined in the same file as the following

static FILE* ssl_debug_file=NULL;
void
ssl_set_debug(char* name)
{
static gint debug_file_must_be_closed;
gint use_stderr;
debug_file_must_be_closed = 0;
use_stderr = name?(strcmp(name, SSL_DEBUG_USE_STDERR) == 0):0;
if (debug_file_must_be_closed)
    fclose(ssl_debug_file);
if (use_stderr)
    ssl_debug_file = stderr;
else if (!name || (strcmp(name, "") ==0))
    ssl_debug_file = NULL;
else
    ssl_debug_file = ws_fopen(name, "w");
if (!use_stderr && ssl_debug_file)
    debug_file_must_be_closed = 1;

}

It is not printing into console as I was not able to find any messages related to this specific function there. Should I create the ssl_debug_file somewhere ? If it is already exist where is it?

Thanks.