Fixed: Skip last write time check on linux for _UNPACK_ folders

src/NzbDrone.Core.Test/MediaFiles/EpisodeImport/Specifications/NotUnpackingSpecificationFixture.cs

@@ -68,5 +68,16 @@ namespace NzbDrone.Core.Test.MediaFiles.EpisodeImport.Specifications
 
             Subject.IsSatisfiedBy(_localEpisode).Should().BeFalse();
         }
+
+        [Test]
+        public void should_return_false_if_unopacking_on_linux()
+        {
+            LinuxOnly();
+
+            GivenInWorkingFolder();
+            GivenLastWriteTimeUtc(DateTime.UtcNow.AddDays(-5));
+
+            Subject.IsSatisfiedBy(_localEpisode).Should().BeFalse();
+        }
     }
 }

src/NzbDrone.Core/MediaFiles/EpisodeImport/Specifications/NotUnpackingSpecification.cs

@@ -2,6 +2,7 @@
 using System.IO;
 using NLog;
 using NzbDrone.Common;
+using NzbDrone.Common.EnvironmentInfo;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Parser.Model;
 
@@ -34,6 +35,12 @@ namespace NzbDrone.Core.MediaFiles.EpisodeImport.Specifications
             {
                 if (Directory.GetParent(localEpisode.Path).Name.StartsWith(workingFolder))
                 {
+                    if (OsInfo.IsLinux)
+                    {
+                        _logger.Trace("{0} is still being unpacked", localEpisode.Path);
+                        return false;
+                    }
+
                     if (_diskProvider.GetLastFileWrite(localEpisode.Path) > DateTime.UtcNow.AddMinutes(-5))
                     {
                         _logger.Trace("{0} appears to be unpacking still", localEpisode.Path);