public IEnumerable <PackageVerifierIssue> Validate(PackageAnalysisContext context)
 {
     if (!string.Equals(context.Metadata.Copyright, ExpectedCopyright, StringComparison.Ordinal))
     {
         yield return(PackageIssueFactory.CopyrightIsIncorrect(context.Metadata.Id, ExpectedCopyright, context.Metadata.Copyright));
     }
 }