Use common licence attributes from lib/licenses.nix

Many (less easily automatically converted) old-style strings
remain.

Where there was any possible ambiguity about the exact version or
variant intended, nothing was changed. IANAL, nor a search robot.

Use `with stdenv.lib` wherever it makes sense.

pkgs/development/tools/misc/autogen/default.nix

@@ -24,7 +24,7 @@ let version = "5.18"; in
 
     #doCheck = true; # 2 tests fail because of missing /dev/tty
 
-    meta = {
+    meta = with stdenv.lib; {
       description = "Automated text and program generation tool";
 
       longDescription = ''
@@ -46,7 +46,7 @@ let version = "5.18"; in
         documentation of program options.
       '';
 
-      license = ["GPLv3+" "LGPLv3+" ];
+      license = with licenses; [ gpl3Plus lgpl3Plus ];
 
       homepage = http://www.gnu.org/software/autogen/;
 

pkgs/development/tools/sauce-connect/default.nix

@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A secure tunneling app for executing tests securely when testing behind firewalls";
-    license = "unfree";
+    license = with licenses; unfree;
     homepage = https://docs.saucelabs.com/reference/sauce-connect/;
     maintainers = with maintainers; [offline];
     platforms = with platforms; platforms.linux;