Add coding tags for iso-2022-7bit files that are not already tagged.

* HELLO, tutorials/TUTORIAL.ko, tutorials/TUTORIAL.th:
Add coding tag.  For TUTORIAL.th this prevents Emacs from
misinterpreting the file.

etc/ChangeLog

 2013-03-12  Paul Eggert  <eggert@cs.ucla.edu>
 
+	Add coding tags for iso-2022-7bit files that are not already tagged.
+	* HELLO, tutorials/TUTORIAL.ko, tutorials/TUTORIAL.th:
+	Add coding tag.  For TUTORIAL.th this prevents Emacs from
+	misinterpreting the file.
+
 	Switch encodings of tutorials, thai-word to UTF-8 (Bug#13880).
 	* refcards/ru-refcard.tex:
 	* tutorials/TUTORIAL.bg, tutorials/TUTORIAL.bg, tutorials/TUTORIAL.cn:

etc/HELLO

@@ -93,4 +93,5 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 ;;; Local Variables:
 ;;; tab-width: 32
 ;;; bidi-display-reordering: t
+;;; coding: iso-2022-7bit
 ;;; End:

etc/tutorials/TUTORIAL.ko

@@ -997,3 +997,6 @@ COPYING$(C@L6s4B(B $(CFD@O@;(B $(C@P0m(B $(C3-(B $(CHD?!(B GNU $(C@L8
 $(CAV=J=C?@(B.  $(C@Z@/(B $(C<RGAF.?~>n8&(B $(C>20m(B $(C885i0m(B $(C0x@/GT@87N=a(B $(C<RGAF.?~>n(B
 $(C9fGX8&(B ("$(C<R@/1G(B") $(C1Y@}GO4B5%(B $(C55?s=C4Y(B.
 
+;;; Local Variables:
+;;; coding: iso-2022-7bit
+;;; End:

etc/tutorials/TUTORIAL.th

@@ -1001,6 +1001,6 @@ virach@nectec.or.th
 Translate - January 1999 by Virach Sornlertlamvanich
 
 ;;; Local Variables:
-;;;   sentence-end-double-space: nil
+;;; sentence-end-double-space: nil
+;;; coding: iso-2022-7bit
 ;;; End:
-