Make sqlite3 tests editable with Emacs

Change the coding declaration from ISO-8859-1 to iso-8859-1. Emacs
doesn't understand the former.

Lib/sqlite3/test/dbapi.py

-#-*- coding: ISO-8859-1 -*-
+#-*- coding: iso-8859-1 -*-
 # pysqlite2/test/dbapi.py: tests for DB-API compliance
 #
 # Copyright (C) 2004-2010 Gerhard Hring <gh@ghaering.de>

Lib/sqlite3/test/factory.py

-#-*- coding: ISO-8859-1 -*-
+#-*- coding: iso-8859-1 -*-
 # pysqlite2/test/factory.py: tests for the various factories in pysqlite
 #
 # Copyright (C) 2005-2007 Gerhard Hring <gh@ghaering.de>

Lib/sqlite3/test/hooks.py

-#-*- coding: ISO-8859-1 -*-
+#-*- coding: iso-8859-1 -*-
 # pysqlite2/test/hooks.py: tests for various SQLite-specific hooks
 #
 # Copyright (C) 2006-2007 Gerhard Häring <gh@ghaering.de>

Lib/sqlite3/test/regression.py

-#-*- coding: ISO-8859-1 -*-
+#-*- coding: iso-8859-1 -*-
 # pysqlite2/test/regression.py: pysqlite regression tests
 #
 # Copyright (C) 2006-2010 Gerhard Hring <gh@ghaering.de>

Lib/sqlite3/test/transactions.py

-#-*- coding: ISO-8859-1 -*-
+#-*- coding: iso-8859-1 -*-
 # pysqlite2/test/transactions.py: tests transactions
 #
 # Copyright (C) 2005-2007 Gerhard Hring <gh@ghaering.de>

Lib/sqlite3/test/types.py

-#-*- coding: ISO-8859-1 -*-
+#-*- coding: iso-8859-1 -*-
 # pysqlite2/test/types.py: tests for type conversion and detection
 #
 # Copyright (C) 2005 Gerhard Hring <gh@ghaering.de>

Lib/sqlite3/test/userfunctions.py

-#-*- coding: ISO-8859-1 -*-
+#-*- coding: iso-8859-1 -*-
 # pysqlite2/test/userfunctions.py: tests for user-defined functions and
 #                                  aggregates.
 #