Fixed health check wiki link unit tests

src/NzbDrone.Core.Test/HealthCheck/HealthCheckFixture.cs

@@ -8,7 +8,7 @@ namespace NzbDrone.Core.Test.HealthCheck
     [TestFixture]
     public class HealthCheckFixture : CoreTest
     {
-        private const string WikiRoot = "https://wiki.servarr.com/Sonarr";
+        private const string WikiRoot = "https://wiki.servarr.com/";
         [TestCase("I blew up because of some weird user mistake", null, WikiRoot + "Sonarr_System#i_blew_up_because_of_some_weird_user_mistake")]
         [TestCase("I blew up because of some weird user mistake", "#my_health_check", WikiRoot + "Sonarr_System#my_health_check")]
         [TestCase("I blew up because of some weird user mistake", "Custom_Page#my_health_check", WikiRoot + "Custom_Page#my_health_check")]

src/NzbDrone.Core/HealthCheck/HealthCheck.cs

@@ -34,7 +34,7 @@ namespace NzbDrone.Core.HealthCheck
 
         private static string MakeWikiFragment(string message)
         {
-            return "#" + CleanFragmentRegex.Replace(message.ToLower(), string.Empty).Replace(' ', '-');
+            return "#" + CleanFragmentRegex.Replace(message.ToLower(), string.Empty).Replace(' ', '_');
         }
 
         private static HttpUri MakeWikiUrl(string fragment)