[master] add entry for #1627

note I can't find the git hash for the merge so
picked some individual commit.

ChangeLog

@@ -1,5 +1,11 @@
 bind10-devel-20120517 released on May 17. 2012
 
+440.	[func]		muks
+	bindctl: improved some error messages so they will be more
+	helpful.  Those include the one when the zone name is unspecified
+	or the name is invalid in the b10-auth configuration.
+	(Trac #1627, git 1a4d0ae65b2c1012611f4c15c5e7a29d65339104)
+
 439.	[func]		jinmei
 	The in-memory data source can now load zones from the
 	sqlite3 data source, so that zones stored in the database