add git info for change log

ChangeLog

@@ -1,6 +1,7 @@
 219.  [bug]     feng
-  If ip address or port isn't usable for name server, name server process
+	If ip address or port isn't usable for name server, name server process
 	won't exist and give end user chance to reconfigure them.
+	(Trac #775, git 572ac2cf62e18f7eb69d670b890e2a3443bfd6e7)
 
 218.	[func]		jinmei
 	src/lib/dns: added support for RP RDATA.