treewide: name -> pname (easy cases) (#66585)

treewide replacement of

stdenv.mkDerivation rec {
  name = "*-${version}";
  version = "*";

to pname

pkgs/development/python-modules/powerline/default.nix

@@ -11,11 +11,10 @@
 buildPythonPackage rec {
   version  = "2.7";
   pname = "powerline";
-  name = pname + "-" + version;
 
   src = fetchurl {
     url    = "https://github.com/powerline/powerline/archive/${version}.tar.gz";
-    name   = "${name}.tar.gz";
+    name   = "${pname}-${version}.tar.gz";
     sha256 = "1h1j2rfphvfdq6mmfyn5bql45hzrwxkhpc2jcwf0vrl3slzkl5s5";
   };