esniper: update to version 2.28.0

pkgs/applications/networking/esniper/default.nix

···
 { stdenv, fetchurl, openssl, curl, coreutils, gawk, bash, which }:
 
 stdenv.mkDerivation {
-  name = "esniper-2.27.0";
+  name = "esniper-2.28.0";
 
   src = fetchurl {
-    url = "mirror://sourceforge/esniper/esniper-2-27-0.tgz";
-    sha256 = "0ca9946395be8958d3eb28c9abc4a1a4d4c9134e4b6b3c3816f4631e3be25c02";
+    url = "mirror://sourceforge/esniper/esniper-2-28-0.tgz";
+    sha256 = "c2b0ccb757616b32f2d6cf54a4a5e367405fa7bcd6e6ed11835fe4f8a06a016b";
   };
 
   buildInputs = [openssl curl];