There is now nothing left of the original FSF-copyrighted
page. So, change the copyright and license.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Rusty notes that O_NONBLOCK is almost always used in
practice. Therefore, it would be better to reorganize
the page to consider that "the default".
Reviewed-by: Lucas De Marchi <lucas.de.marchi@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>