tty: clean up whitespace in __do_SAK()

Remove spaces before the 'i' variable declaration and wrap parameters of
group_send_sig_info().

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20211118071911.12059-4-jslaby@suse.cz


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>