treewide: name -> pname

pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-latex/default.nix

@@ -3,7 +3,8 @@
 let version = "1.5.0";
 in
 stdenv.mkDerivation {
-  name = "pidgin-latex-${version}";
+  pname = "pidgin-latex";
+  inherit version;
 
   src = fetchurl {
     url = "mirror://sourceforge/pidgin-latex/pidgin-latex_${version}.tar.bz2";

pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-mra/default.nix

@@ -4,7 +4,8 @@ let
   version = "54b2992";
 in
 stdenv.mkDerivation rec {
-  name = "pidgin-mra-${version}";
+  pname = "pidgin-mra";
+  inherit version;
 
   src = fetchgit {
     url = "https://github.com/dreadatour/pidgin-mra";

pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-xmpp-receipts/default.nix

@@ -4,7 +4,8 @@ let
   version = "0.8";
 in
 stdenv.mkDerivation rec {
-  name = "pidgin-xmpp-receipts-${version}";
+  pname = "pidgin-xmpp-receipts";
+  inherit version;
 
   src = fetchFromGitHub {
     owner = "noonien-d";

pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-matrix/default.nix

@@ -4,7 +4,8 @@ let
   version = "2018-08-03";
 in
 stdenv.mkDerivation rec {
-  name = "purple-matrix-unstable-${version}";
+  pname = "purple-matrix-unstable";
+  inherit version;
 
   src = fetchgit {
     url = "https://github.com/matrix-org/purple-matrix";

pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-vk-plugin/default.nix

@@ -4,7 +4,8 @@ let
   version = "40ddb6d";
 in
 stdenv.mkDerivation rec {
-  name = "purple-vk-plugin-${version}";
+  pname = "purple-vk-plugin";
+  inherit version;
 
   src = fetchhg {
     url = "https://bitbucket.org/olegoandreev/purple-vk-plugin";

pkgs/applications/networking/instant-messengers/pidgin-plugins/telegram-purple/default.nix

@@ -4,7 +4,8 @@ let
   version = "1.3.0";
 in
 stdenv.mkDerivation rec {
-  name = "telegram-purple-${version}";
+  pname = "telegram-purple";
+  inherit version;
 
   src = fetchgit {
     url = "https://github.com/majn/telegram-purple";