2017-05-29  Tom de Vries  <tom@codesourcery.com>

	* check_GNU_style_lib.py (check_GNU_style_file): Treat file argument as
	file handle.  Add and handle file_encoding argument.
	* check_GNU_style.py (main): Handle '-' file argument.  Call
	check_GNU_style_file with file handle as argument.

From-SVN: r248555