[master] Delete trailing space and reindent ChangeLog entry

ChangeLog

 711.	[func]	tmark
 	Added the initial implementation of the class, NameAddTransaction,
-	to b10-dhcp-ddns.  This class provides the state model logic described
-	in the DHCP_DDNS design to add or replace forward and reverse DNS entries
-	for a given FQDN.  It does not yet construct the actual DNS update 
-	requests, this will be added under Trac# 3241.
+	to b10-dhcp-ddns.  This class provides the state model logic
+	described in the DHCP_DDNS design to add or replace forward and
+	reverse DNS entries for a given FQDN.  It does not yet construct
+	the actual DNS update requests, this will be added under Trac#
+	3241.
 	(Trac# 3207, git 8f99da735a9f39d514c40d0a295f751dc8edfbcd)
 
 710.	[build]		jinmei