Better handle default config values in documentation test

Author: ltrzesniewski

src/ZeroLog.Impl.Full/Configuration/ZeroLogConfiguration.cs

@@ -57,7 +57,7 @@ public sealed class ZeroLogConfiguration
     /// This allows hooking <c>LogManager.Shutdown</c> calls to <c>AppDomain.CurrentDomain.ProcessExit</c> events as this event is otherwise blocked by a foreground thread.
     /// </para>
     /// <para>
-    /// Default: false.
+    /// Default: false
     /// </para>
     /// </remarks>
     public bool UseBackgroundThread { get; init; } = false;

src/ZeroLog.Tests/DocumentationTests.cs

@@ -1,6 +1,7 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Text.RegularExpressions;
 using System.Xml.Linq;
 using NUnit.Framework;
 using NUnit.Framework.Interfaces;
@@ -28,9 +29,11 @@ public void should_have_valid_documentation(XElement member)
             member.Elements("remarks").Count().ShouldBeLessThanOrEqualTo(1);
         }
 
-        foreach (var text in member.Elements().Select(i => i.Value.Trim()).Where(i => i.Length != 0))
+        foreach (var elem in member.Elements())
         {
-            if (!text.StartsWith("Default: "))
+            var text = Regex.Replace(elem.Value, @"^\s*Default:.*", "", RegexOptions.Multiline).Trim();
+
+            if (text.Length != 0)
                 text.ShouldEndWith(".");
         }
     }