Update lib/webrick/httpservlet/cgihandler.rb

use keyword argument

Co-authored-by: Jeremy Evans <[email protected]>

Author: paulownia

lib/webrick/httpservlet/cgihandler.rb

@@ -96,7 +96,7 @@ def do_GET(req, res)
           "Premature end of script headers: #{@script_filename}" if body.nil?
 
         begin
-          header = HTTPUtils::parse_header(raw_header, true)
+          header = HTTPUtils::parse_header(raw_header, cgi_mode: true)
           if /^(\d+)/ =~ header['status'][0]
             res.status = $1.to_i
             header.delete('status')