The io/ioutil package has been deprecated in Go 1.16. This commit
replaces the existing io/ioutil functions with their new definitions in
io and os packages.
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
also renamed the non-windows variant of this file to be
consistent with other files in this package
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>