AsEnumerable() shouldn't use the fully qualified path

[lodejard]

It should return the path relative to the child section.

Repro:

Program.cs

            var builder = new WebHostBuilder()
                .UseConfiguration(config.GetSection("Hosting"))

MyApp.ini

[Hosting]
Environment=Development
ApplicationName=Demo

Expected:
builder has "Environment":"Development" and "ApplicationName":"Demo" in its settings collection, which are used to control startup

Actual:
builder has "Hosting:Environment":"Development" and "Hosting:ApplicationName":"Demo", which have no effect

[HaoK]

Ah yeah looks like this was intended for the root mostly, we can change this to strip out the current path from the results.

[HaoK]

Fixed via c202d31 and makePathsRelative: true overload