Added product name var to batch-size snippet

Signed-off-by: mrgarris0n <[email protected]>

_includes/doc/admin-guide/batch-size.md

@@ -1,17 +1,17 @@
 ## Batch size
 
 The batch-bytes(), batch-lines(), and batch-timeout() options of the
-destination determine how many log messages syslog-ng OSE sends in a
+destination determine how many log messages {{ site.product.short_name }} sends in a
 batch. The batch-lines() option determines the maximum number of
-messages syslog-ng OSE puts in a batch in. This can be limited based on
+messages {{ site.product.short_name }} puts in a batch in. This can be limited based on
 size and time:
 
-- syslog-ng OSE sends a batch every batch-timeout() milliseconds, even
+- {{ site.product.short_name }} sends a batch every batch-timeout() milliseconds, even
     if the number of messages in the batch is less than batch-lines().
     That way the destination receives every message in a timely manner
     even if suddenly there are no more messages.
 
-- syslog-ng OSE sends the batch if the total size of the messages in
+- {{ site.product.short_name }} sends the batch if the total size of the messages in
     the batch reaches batch-bytes() bytes.
 
 To increase the performance of the destination, increase the number of