Add exception free standard path for checking zone identifier

Addressing Ilya's comments.
Removing Trim call on streamName.
PowerShell · iSazonov · Oct 24, 2018 · iSazonov · Oct 24, 2018 · powercode
diff --git a/src/System.Management.Automation/namespaces/FileSystemProvider.cs b/src/System.Management.Automation/namespaces/FileSystemProvider.cs
diff --git a/src/System.Management.Automation/namespaces/FileSystemProvider.cs b/src/System.Management.Automation/namespaces/FileSystemProvider.cs
            {
                string errorMessage = StringUtil.Format(
                    FileSystemProviderStrings.AlternateDataStreamNotFound, streamName, path);
-                throw new FileNotFoundException(errorMessage, resultPath);
+                throw new FileNotFoundException(errorMessage, $"{path}:{streamName.Trim()}");
diff --git a/src/System.Management.Automation/namespaces/FileSystemProvider.cs b/src/System.Management.Automation/namespaces/FileSystemProvider.cs