Better fix for Prowl logging issues.

NzbDrone.Core/Providers/ExternalNotification/Prowl.cs

@@ -10,8 +10,6 @@ namespace NzbDrone.Core.Providers.ExternalNotification
     {
         private readonly ProwlProvider _prowlProvider;
 
-        private readonly Logger Logger = LogManager.GetCurrentClassLogger();
-
         public Prowl(ConfigProvider configProvider, ProwlProvider prowlProvider)
             : base(configProvider)
         {
@@ -41,7 +39,7 @@ namespace NzbDrone.Core.Providers.ExternalNotification
 
             catch (Exception ex)
             {
-                Logger.WarnException(ex.Message, ex);
+                _logger.WarnException(ex.Message, ex);
                 throw;
             }
         }
@@ -64,7 +62,7 @@ namespace NzbDrone.Core.Providers.ExternalNotification
 
             catch (Exception ex)
             {
-                Logger.WarnException(ex.Message, ex);
+                _logger.WarnException(ex.Message, ex);
                 throw;
             }
         }

NzbDrone.Core/Providers/GrowlProvider.cs

@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 using Growl.Connector;
 using NLog;
 
@@ -9,7 +8,7 @@ namespace NzbDrone.Core.Providers
 {
     public class GrowlProvider
     {
-        private readonly Logger Logger = LogManager.GetCurrentClassLogger();
+        private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
 
         private readonly Application _growlApplication = new Application("NzbDrone");
         private GrowlConnector _growlConnector;

NzbDrone.Core/Providers/ProwlProvider.cs

@@ -1,7 +1,5 @@
 using System;
-using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 using NLog;
 using Prowlin;
 
@@ -9,12 +7,7 @@ namespace NzbDrone.Core.Providers
 {
     public class ProwlProvider
     {
-        private readonly Logger Logger = LogManager.GetCurrentClassLogger();
-
-        public ProwlProvider()
-        {
-
-        }
+        private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
 
         public virtual bool Verify(string apiKey)
         {