Whitehall.public_host = ENV['FACTER_govuk_platform'] == 'production' ? 'www.gov.uk' : 'www.dev.gov.uk'

Whitehall.public_host = (ENV['FACTER_govuk_platform'] == 'production' ? 'www.gov.uk' : 'www.dev.gov.uk')

Make this more clear with parentheses
Make this more clear with parentheses
