Add a RELEASE_BB_BUFFER macro and use it to fix a memory leak in syslogd.c
(noted by Adam Slattery).
diff --git a/syslogd.c b/syslogd.c
index 8ae70a1..14219eb 100644
--- a/syslogd.c
+++ b/syslogd.c
@@ -431,6 +431,7 @@
 		/* Now log it */
 		logMessage (pri, line);
 	}
+	RELEASE_BB_BUFFER (tmpbuf);
 	return n_read;
 }