make-startupitem: fix typo in comment

+1 -1
+1 -1
pkgs/build-support/make-startupitem/default.nix
··· 1 - # given a pakcage with a $name.desktop file, makes a copy 1 + # given a package with a $name.desktop file, makes a copy 2 2 # as autostart item. 3 3 4 4 {stdenv, lib}: