Gets the Encoding of the standard error stream of the task.
Assembly: Microsoft.Build.Utilities.v4.0 (in Microsoft.Build.Utilities.v4.0.dll)
Console-based output uses the current system OEM code page by default. Note that we should not use Console.OutputEncoding here since processes we run don't really have much to do with our console window (and also Console.OutputEncoding doesn't return the OEM code page if the running application that hosts MSBuild is not a console application).
Available since 2.0