maintainer-list: add winpat

maintainers/maintainer-list.nix

···
     email = "[e-mail]";
     name = "Antonio Vargas Gonzalez";
   };
+  winpat = {
+    email = "[e-mail]";
+    github = "winpat";
+    name = "Patrick Winter";
+  };
   wizeman = {
     email = "[e-mail]";
     github = "wizeman";

pkgs/tools/backup/dirvish/default.nix

···
     homepage = http://dirvish.org/;
     license = stdenv.lib.licenses.osl2;
     platforms = platforms.linux;
+    maintainers = [ maintainers.winpat ];
   };
 }

pkgs/top-level/perl-packages.nix

···
     meta = {
       description = "A Perl module to deal with time periods";
       license = stdenv.lib.licenses.gpl1;
+      maintainers = [ maintainers.winpat ];
     };
   };