[PATCH] Add .dir-locals.el

This adds a .dir-locals.el file to the repository.  This helps Emacs
users by automatically setting variables when editing files in this
project.
---
 .dir-locals.el | 21 +++++++++++++++++++++
 ChangeLog      |  4 ++++
 2 files changed, 25 insertions(+)
 create mode 100644 .dir-locals.el

diff --git a/.dir-locals.el b/.dir-locals.el
new file mode 100644
index 0000000..9d2b718
--- /dev/null
+++ b/.dir-locals.el
@@ -0,0 +1,21 @@
+;; Emacs settings.
+;; Copyright (C) 2020 Free Software Foundation, Inc.
+
+;; 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
+;; (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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+(
+ (tcl-mode . ((tcl-indent-level . 4)
+	      (tcl-continued-indent-level . 4)
+	      (indent-tabs-mode . t)))
+)
-- 
2.17.2