Unify and fix files preambles.

xwidget-plus-common.el

@@ -1,7 +1,15 @@
-;;; xwidget-plus-common.el -- Helper functions for xwidget-plus. -*- lexical-binding: t; -*-
+;;; xwidget-plus-common.el --- Helper functions for xwidget-plus. -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 2020 Damien Merenne <dam@cosinux.org>
 
+;; This file is NOT part of GNU Emacs.
+
+;;; Commentary:
+
+;; Shared functions for the xwidget-plus package.
+
+;;; License:
+
 ;; This program is free software: you can redistribute it and/or modify
 ;; it under the terms of the GNU General Public License as published by
 ;; the Free Software Foundation, either version 3 of the License, or
@@ -13,7 +21,7 @@
 ;; GNU General Public License for more details.
 
 ;; You should have received a copy of the GNU General Public License
-;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 ;;; Commentary:
 

xwidget-plus-follow-link.el

@@ -1,7 +1,15 @@
-;;; xwidget-plus-follow-link.el -- Link navigation in browsers -*- lexical-binding: t; -*-
+;;; xwidget-plus-follow-link.el --- Link navigation in browsers -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 2020 Damien Merenne <dam@cosinux.org>
 
+;; This file is NOT part of GNU Emacs.
+
+;;; Commentary:
+
+;; Add support for navigating web pages using the minibuffer completion.
+
+;;; License:
+
 ;; This program is free software: you can redistribute it and/or modify
 ;; it under the terms of the GNU General Public License as published by
 ;; the Free Software Foundation, either version 3 of the License, or
@@ -13,7 +21,7 @@
 ;; GNU General Public License for more details.
 
 ;; You should have received a copy of the GNU General Public License
-;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 ;;; Commentary:
 

xwidget-plus.el

@@ -15,27 +15,18 @@
 
 ;;; License:
 
-;; This program is free software; you can redistribute it and/or modify
+;; This program is free software: you can redistribute it and/or modify
 ;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 3, or (at your option)
-;; any later version.
-;;
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
 ;; This program is distributed in the hope that it will be useful,
 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 ;; GNU General Public License for more details.
-;;
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING.  If not, write to the
-;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
-
-;;; Code:
 
-
-;;; User customizable variable
-
-;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 ;;; Code: