Add version attribute where maintainers |= nckx

This will probably be mandatory soon, and is a step in the right
direction. Removes the deprecated meta.version, and move some meta
sections to the end of the file where I should have put them in
the first place.

pkgs/tools/system/foremost/default.nix

@@ -1,8 +1,8 @@
 { stdenv, fetchurl }:
 
-let version = "1.5.7"; in
 stdenv.mkDerivation rec {
   name = "foremost-${version}";
+  version = "1.5.7";
 
   src = fetchurl {
     sha256 = "0d2zxw0ijg8cd3ksgm8cf8jg128zr5x7z779jar90g9f47pm882h";
@@ -20,7 +20,6 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    inherit version;
     description = "Recover files based on their contents";
     longDescription = ''
       Foremost is a console program to recover files based on their headers,

pkgs/tools/system/gptfdisk/default.nix

@@ -1,8 +1,8 @@
 { fetchurl, stdenv, libuuid, popt, icu, ncurses }:
 
-let version = "1.0.1"; in
 stdenv.mkDerivation rec {
   name = "gptfdisk-${version}";
+  version = "1.0.1";
 
   src = fetchurl {
     # http://www.rodsbooks.com/gdisk/${name}.tar.gz also works, but the home
@@ -36,7 +36,6 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    inherit version;
     description = "Set of text-mode partitioning tools for Globally Unique Identifier (GUID) Partition Table (GPT) disks";
     license = licenses.gpl2;
     homepage = http://www.rodsbooks.com/gdisk/;

pkgs/tools/system/suid-chroot/default.nix

@@ -1,8 +1,8 @@
 { stdenv, fetchurl }:
 
-let version = "1.0.2"; in
 stdenv.mkDerivation rec {
   name = "suid-chroot-${version}";
+  version = "1.0.2";
 
   src = fetchurl {
     sha256 = "1a9xqhck0ikn8kfjk338h9v1yjn113gd83q0c50k78xa68xrnxjx";
@@ -14,7 +14,6 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    inherit version;
     description = "Setuid-safe wrapper for chroot";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ nckx ];