What's Changed

• sequential: remove fileFlagSequentialScan const
• sequential: consistently use x/sys/windows for consts
• sequential: open(File)Sequential: remove unused arg
• sequential: move error-handling to openFileSequential
• sequential: simplify docs for non-Windows implementations
• sequential: update docs for Windows-implementation
• bump golang.org/x/sys to v0.1.0

Full Changelog: https://github.com/moby/sys/compare/sequential/v0.5.0...sequential/v0.6.0