Don't use "with licenses;" for single licences

And don't use square brackets on such lines.

1 files changed, 1 insertions, 1 deletions

diff --git a/pkgs/tools/networking/maildrop/default.nix b/pkgs/tools/networking/maildrop/default.nix
index cf9c3a4fa4e0..fad99bbd7d7f 100644
--- a/pkgs/tools/networking/maildrop/default.nix
+++ b/pkgs/tools/networking/maildrop/default.nix
@@ -15,6 +15,6 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     homepage = http://www.courier-mta.org/maildrop/;
     description = "Mail filter/mail delivery agent that is used by the Courier Mail Server";
-    license = with licenses; gpl3;
+    license = licenses.gpl3;
   };
 }