Manpages of src:io-stringy in Debian buster

• IO::AtomicFile(3pm)
• IO::InnerFile(3pm)
• IO::Lines(3pm)
• IO::Scalar(3pm)
• IO::ScalarArray(3pm)
• IO::Stringy(3pm)
• IO::Wrap(3pm)
• IO::WrapTie(3pm)