Add ChangeLog entry fro #3099

ChangeLog

+741.    [bug]       shane
+	Remove hard-coded (and unnecessary) TSIG key from error message. 
+	This also prevents a crash if the TSIG name is missing.
+	(Trac #3099, git 0ba8bbabe09756a4627e80aacdbb5050407faaac)
+
 740.	[func]		muks
 	When displaying messages about mismatched configuration data types
 	in entered values (between the supplied value type and expected