treewide: stdenv.lib -> lib

pkgs/applications/version-management/guitone/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchmtn, qt4, qmake4Hook, pkgconfig, graphviz }:
+{ lib, stdenv, fetchmtn, qt4, qmake4Hook, pkgconfig, graphviz }:
 
 let version = "1.0-mtn-head"; in
 stdenv.mkDerivation {
@@ -28,7 +28,7 @@ stdenv.mkDerivation {
     description = "Qt4 based GUI for monotone";
     homepage = "https://guitone.thomaskeller.biz";
     downloadPage = "https://code.monotone.ca/p/guitone/";
-    license = stdenv.lib.licenses.gpl3;
+    license = lib.licenses.gpl3;
     inherit (qt4.meta) platforms;
   };
 }