Fixed IsValidPath usages

(cherry picked from commit 033936dce7e13c8ab2e38407782dc9cdd949460e)

src/NzbDrone.Core.Test/HealthCheck/Checks/RemotePathMappingCheckFixture.cs

@@ -74,7 +74,7 @@ namespace NzbDrone.Core.Test.HealthCheck.Checks
                 .Setup(x => x.FolderExists(It.IsAny<string>()))
                 .Returns((string path) =>
                 {
-                    Ensure.That(path, () => path).IsValidPath();
+                    Ensure.That(path, () => path).IsValidPath(PathValidationType.CurrentOs);
                     return false;
                 });
 
@@ -82,7 +82,7 @@ namespace NzbDrone.Core.Test.HealthCheck.Checks
                 .Setup(x => x.FileExists(It.IsAny<string>()))
                 .Returns((string path) =>
                 {
-                    Ensure.That(path, () => path).IsValidPath();
+                    Ensure.That(path, () => path).IsValidPath(PathValidationType.CurrentOs);
                     return false;
                 });