fixup! Rename CorrelationIdCookie to CorrelationCookie

Author: Nate McMaster

src/Microsoft.AspNetCore.Authentication/RemoteAuthenticationHandler.cs

@@ -203,7 +203,7 @@ protected virtual bool ValidateCorrelationId(AuthenticationProperties properties
 
             if (!properties.Items.TryGetValue(CorrelationProperty, out string correlationId))
             {
-                Logger.CorrelationPropertyNotFound(RemoteAuthenticationOptions.CorrelationPrefix);
+                Logger.CorrelationPropertyNotFound(Options.CorrelationCookie.Name);
                 return false;
             }
 

src/Microsoft.AspNetCore.Authentication/RemoteAuthenticationOptions.cs

@@ -14,7 +14,7 @@ namespace Microsoft.AspNetCore.Authentication
     /// </summary>
     public class RemoteAuthenticationOptions : AuthenticationSchemeOptions
     {
-        internal const string CorrelationPrefix = ".AspNetCore.Correlation.";
+        private const string CorrelationPrefix = ".AspNetCore.Correlation.";
 
         private CookieBuilder _correlationCookieBuilder;