update zlib

ghostscript/ghostscript.spec

@@ -28,7 +28,7 @@
 %define       V_font_other 6.0
 %define       V_jpeg       9
 %define       V_png        1.4.8
-%define       V_zlib       1.2.7
+%define       V_zlib       1.2.8
 
 #   package information
 Name:         ghostscript
@@ -41,7 +41,7 @@ Class:        BASE
 Group:        Postscript
 License:      GPL
 Version:      %{V_real}
-Release:      20130116
+Release:      20130923
 
 #   package options
 %option       with_a4      yes