net-tools: rename from nettools

By being in sync with the pname, it makes it easier to walk back from
the pname that shows in the /nix/store back to the attribute.

This change should not cause any rebuild.

nixos/modules/virtualisation/digital-ocean-config.nix

@@ -144,7 +144,7 @@ with lib;
         systemd.services.digitalocean-set-hostname = mkIf (hostName == "") {
           path = [
             pkgs.curl
-            pkgs.nettools
+            pkgs.net-tools
           ];
           description = "Set hostname provided by Digitalocean";
           wantedBy = [ "network.target" ];

nixos/modules/virtualisation/ec2-data.nix

@@ -34,7 +34,7 @@ with lib;
         ${optionalString (config.networking.hostName == "") ''
           echo "setting host name..."
           if [ -s /etc/ec2-metadata/hostname ]; then
-              ${pkgs.nettools}/bin/hostname $(cat /etc/ec2-metadata/hostname)
+              ${pkgs.net-tools}/bin/hostname $(cat /etc/ec2-metadata/hostname)
           fi
         ''}
 

nixos/modules/virtualisation/vagrant-guest.nix

@@ -23,7 +23,7 @@ in
   environment.systemPackages = with pkgs; [
     findutils
     iputils
-    nettools
+    net-tools
     netcat
     nfs-utils
     rsync

nixos/modules/virtualisation/waagent.nix

@@ -351,7 +351,7 @@ in
           parted
 
           # for hostname
-          nettools
+          net-tools
           # for pidof
           procps
           # for useradd, usermod