Updated have at most value

1) advanced search pub info subject 'soviet union and historiography' and pub info '1910-1911 pub info 2011
     Failure/Error: resp.should have_at_most(128000).results
       expected at most 128000 results, got 128023
     # ./spec/advanced_search_spec.rb:345:in `block (4 levels) in <top (required)>'