[trac555] Update ChangeLog

ChangeLog

@@ -1,3 +1,7 @@
+248.    [func]      stephen
+	Add file and stderr as destinations for logging.
+	(Trac555, git 38b3546867425bd64dbc5920111a843a3330646b)
+
 247.    [func]      jelte
 	Upstream queries from the resolver now set EDNS0 buffer size.
 	(Trac834, git 48e10c2530fe52c9bde6197db07674a851aa0f5d)