Coerce Grape's Total header to a String

Signed-off-by: David Celis <[email protected]>

Author: davidcelis

lib/grape/pagination.rb

@@ -27,7 +27,7 @@ def paginate(collection)
           include_total   = ApiPagination.config.include_total
 
           header 'Link',          links.join(', ') unless links.empty?
-          header total_header,    ApiPagination.total_from(collection) if include_total
+          header total_header,    ApiPagination.total_from(collection).to_s if include_total
           header per_page_header, options[:per_page].to_s
           header page_header,     options[:page].to_s unless page_header.nil?