Don't match version of logical value N/A against version ranges.
Don't match version of logical value N/A against version ranges.

Accordingly to CPE spec version=N/A matches version=Any.
When we have version ranges in our feed, the version of CPE is usually set to Any to allow range match.
But version=N/A should not match any range, yet now it might. This fixes it.

facebookincubator/nvdtools