Nixpkgs: texlive: grffile package is very outdated

[alexeymuranov]

Describe the bug

Using TeX Live 2019 on NixOS 20.03, I noticed that grffile package is very outdated: the current version is v2.1 2019-11-11, but on my system i have v1.18 2017-06-30. This can cause issues.

I wonder if there are more outdated TeX Live packages.

To Reproduce

1. Configure and install TeX Live so that grffile be included (collection-latexrecommended):

   # file: ~/.nixpkgs/config.nix
   {
     packageOverrides = pkgs: {
       myTexLive = pkgs.texlive.combine {
         inherit (pkgs.texlive) scheme-basic
                                collection-latex
                                collection-latexrecommended;
       };
     };
   }
   

   $ nix-env -iA nixos.myTexLive
   

2. Inspect grffile.sty:

   $ head -n15 $(kpsewhich grffile.sty)
   %%
   %% This is file `grffile.sty',
   %% generated with the docstrip utility.
   %%
   %% The original source files were:
   %%
   %% grffile.dtx  (with options: `package')
   %% 
   %% This is a generated file.
   %% 
   %% Project: grffile
   %% Version: 2017/06/30 v1.18
   %% 
   %% Copyright (C) 2006-2012 by
   %%    Heiko Oberdiek <heiko.oberdiek at googlemail.com>
   

Expected behavior

A recent version should be installed.

Additional context

The old version of grffile seems to cause bugs with TeX Live 2019.

Metadata

$ nix-shell -p nix-info --run "nix-info -m"
 - system: `"x86_64-linux"`
 - host os: `Linux 5.4.23-hardened, NixOS, 20.03beta377.ebc9620c3f6 (Markhor)`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.3.2`
 - channels(alexey): `"nixos-17.03-17.03.1949.78e9665b48f, nixos-17.09-17.09.3238.e984f9e48e1"`
 - channels(root): `"nixos-20.03beta377.ebc9620c3f6"`
 - nixpkgs: `/nix/var/nix/profiles/per-user/root/channels/nixos`

[veprbl]

I'm looking to bump to the tlnet-final snapshot as soon as it is completely frozen. That will be in a few days.