Fix test

Author: tmat

LibGit2Sharp.Tests/MetaFixture.cs

@@ -71,6 +71,7 @@ where t.GetTypeInfo().IsPublic && !t.IsNested
                            from m in methods
                            where !m.GetCustomAttributes(typeof(FactAttribute), false)
                                    .Concat(m.GetCustomAttributes(typeof(TheoryAttribute), false))
+                                   .Concat(m.GetCustomAttributes(typeof(ConditionalFactAttribute), false))
                                    .Any()
                            let name = t.FullName + "." + m.Name
                            where !exceptions.Contains(name)