tools/system: replace name with pname&version

pkgs/tools/system/stress/default.nix

···
 { lib, stdenv, fetchurl }:
 
 stdenv.mkDerivation rec {
-  name = "stress-1.0.4";
+  pname = "stress";
+  version = "1.0.4";
 
   src = fetchurl {
-    url = "https://people.seas.harvard.edu/~apw/stress/${name}.tar.gz";
+    url = "https://people.seas.harvard.edu/~apw/stress/stress-${version}.tar.gz";
     sha256 = "0nw210jajk38m3y7h8s130ps2qsbz7j75wab07hi2r3hlz14yzh5";
   };
 

pkgs/tools/system/ts/default.nix

···
 }:
 
 stdenv.mkDerivation rec {
-
-  name = "ts-1.0";
+  pname = "ts";
+  version = "1.0";
 
   installPhase=''make install "PREFIX=$out"'';
 
···
   '';
 
   src = fetchurl {
-    url = "http://viric.name/~viric/soft/ts/${name}.tar.gz";
+    url = "https://viric.name/~viric/soft/ts/ts-${version}.tar.gz";
     sha256 = "15dkzczx10fhl0zs9bmcgkxfbwq2znc7bpscljm4rchbzx7y6lsg";
   };
 

pkgs/tools/system/undaemonize/default.nix

···
 { lib, stdenv, fetchFromGitHub }:
 
 stdenv.mkDerivation {
-  name = "undaemonize-2017-07-11";
+  pname = "undaemonize";
+  version = "unstable-2017-07-11";
+
   src = fetchFromGitHub {
     repo = "undaemonize";
     owner = "nickstenning";