Don't pass leading string to parse_line
Don't pass leading string to parse_line

This is a legacy from when `parse_line` was only used within `validate_url`. We now join the leading and the chunk within `parse_line`

ResultadosDigitais/csvlint.rb,strategicdata/csvlint.rb,nickzoic/csvlint.rb,theodi/csvlint.rb,strategicdata/csvlint.rb