Bring dvipdfmx.def header into line with dvips/pdftex

dvipdfmx.def

@@ -1,13 +1,13 @@
-%% This is file `dvipdfmx.def' for DVIPDFMx by J.-H. Cho and S. Hirata
-%% based upon `dvipdf.def' in the LaTeX `Graphics Bundle'.
+%% dvipdfmx.def Copyright (C) 2005-2017 LaTeX3 Project, Jin-Hwan Cho, Shunsaku Hirata
+%%                                      (with contributions from many others)
 %%
-%% Copyright 2005-2017 LaTeX3 Project, Jin-Hwan Cho, Shunsaku Hirata
-%% (with contributions from many others)
-%% 
-%% This file is not part of the Standard LaTeX `Graphics Bundle'.
-%% It may be distributed under the terms of the LaTeX Project Public
-%% License, as described in lppl.txt in the base LaTeX distribution.
-%% Either version 1.0 or, at your option, any later version.
+%% This work may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%   http://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
 %%
 %% This work has the LPPL maintenance status `maintained'.
 %%
@@ -16,7 +16,7 @@
 %% https://github.com/latex3/graphics-def/issues
 %%
 \ProvidesFile{dvipdfmx.def}
-  [2017/01/22 v4.13 LaTeX color/graphics driver for dvipdfmx (L3/ChoF)]
+  [2017/01/22 v4.13 Graphics/color driver for dvipdfmx]
 %
 % miniltx.tex does not define \PackageWarning
 \@ifundefined{PackageWarning}{%