Add logging for custom format score above minimum

(cherry picked from commit 87934c77614a60e2f53cf9dbeb553b0a4928977a)

src/NzbDrone.Core/DecisionEngine/Specifications/CustomFormatAllowedByProfileSpecification.cs

@@ -1,3 +1,4 @@
+using NLog;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Core.IndexerSearch.Definitions;
 using NzbDrone.Core.Parser.Model;
@@ -6,9 +7,15 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
 {
     public class CustomFormatAllowedbyProfileSpecification : IDecisionEngineSpecification
     {
+        private readonly Logger _logger;
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
+        public CustomFormatAllowedbyProfileSpecification(Logger logger)
+        {
+            _logger = logger;
+        }
+
         public virtual Decision IsSatisfiedBy(RemoteAlbum subject, SearchCriteriaBase searchCriteria)
         {
             var minScore = subject.Artist.QualityProfile.Value.MinFormatScore;
@@ -19,6 +26,8 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                 return Decision.Reject("Custom Formats {0} have score {1} below Artist profile minimum {2}", subject.CustomFormats.ConcatToString(), score, minScore);
             }
 
+            _logger.Trace("Custom Format Score of {0} [{1}] above Artist profile minimum {2}", score, subject.CustomFormats.ConcatToString(), minScore);
+
             return Decision.Accept();
         }
     }