Add CHANGES entry:

4921.   [cleanup]       Add dns_fixedname_initname() and refactor the caller
                        code to make usage of the new function, as a part of
                        refactoring dns_fixedname_*() macros were turned into
                        functions. [GL #183]

CHANGES

+4921.	[cleanup]	Add dns_fixedname_initname() and refactor the caller
+			code to make usage of the new function, as a part of
+			refactoring dns_fixedname_*() macros were turned into
+			functions. [GL #183]
+
 4920.	[cleanup]	Clean up libdns removing most of the backwards
 			compatibility wrappers.