Even in .NET 4.6.2
`System.IO.Compression.ZipFile.ExtractToDirectory()` cannot handle
long paths. Replace call to
`System.IO.Compression.ZipFile.ExtractToDirectory()` with an
equivalent that extracts files to a temporary location and uses I/O
functions that support long paths to move them to their final
location.
In CommandLineOperationsTests.cs, use ISystemIO functions to handle
potentially long paths.
Add a fix to RecoveryTool for long paths that was missed by #4258.
This fixes#3863.
