pepper: add 'pierrer' as a maintainer

lib/maintainers.nix

···
   Phlogistique = "Noé Rubinstein <[e-mail]>";
   phreedom = "Evgeny Egorochkin <[e-mail]>";
   phunehehe = "Hoang Xuan Phu <[e-mail]>";
+  pierrer = "Pierre Radermecker <[e-mail]>";
   pierron = "Nicolas B. Pierron <[e-mail]>";
   piotr = "Piotr Pietraszkiewicz <[e-mail]>";
   pjbarnoy = "Perry Barnoy <[e-mail]>";

pkgs/tools/admin/salt/pepper/default.nix

···
     url = "https://github.com/saltstack/pepper/releases/download/${version}/${name}.tar.gz";
     sha256 = "0gf4v5y1kp16i1na4c9qw7cgrpsh21p8ldv9r6b8gdwcxzadxbck";
   };
-  
+
   doCheck = false; # no tests available
 
-  meta = {
+  meta = with lib; {
     description = "A CLI front-end to a running salt-api system";
     homepage = https://github.com/saltstack/pepper;
-    license = lib.licenses.asl20;
+    maintainers = [ maintainers.pierrer ];
+    license = licenses.asl20;
   };
 }