Fixed: Extra new line in release restrictions causing all releases to be rejected

src/NzbDrone.Core.Test/DecisionEngineTests/NotRestrictedReleaseSpecificationFixture.cs

@@ -49,5 +49,12 @@ namespace NzbDrone.Core.Test.DecisionEngineTests
             Mocker.GetMock<IConfigService>().SetupGet(c => c.ReleaseRestrictions).Returns(restrictions);
             Subject.IsSatisfiedBy(_parseResult, null).Should().BeTrue();
         }
+
+        [Test]
+        public void should_not_try_to_find_empty_string_as_a_match()
+        {
+            Mocker.GetMock<IConfigService>().SetupGet(c => c.ReleaseRestrictions).Returns("test\n");
+            Subject.IsSatisfiedBy(_parseResult, null).Should().BeTrue();
+        }
     }
 }

src/NzbDrone.Core/Configuration/ConfigService.cs

@@ -231,8 +231,8 @@ namespace NzbDrone.Core.Configuration
 
         public string ReleaseRestrictions
         {
-            get { return GetValue("ReleaseRestrictions", String.Empty); }
-            set { SetValue("ReleaseRestrictions", value); }
+            get { return GetValue("ReleaseRestrictions", String.Empty).Trim('\r', '\n'); }
+            set { SetValue("ReleaseRestrictions", value.Trim('\r', '\n')); }
         }
 
         public Int32 RssSyncInterval

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

@@ -41,6 +41,8 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
 
             foreach (var restriction in restrictions)
             {
+                if (String.IsNullOrWhiteSpace(restriction)) continue;
+
                 if (subject.Release.Title.ToLowerInvariant().Contains(restriction.ToLowerInvariant()))
                 {
                     _logger.Trace("{0} is restricted: {1}", subject, restriction);