Fix frozen string literal error when driver can't be instantiated
@@ -214,7 +214,7 @@ module Selenium
return unless @create_driver_error && @create_driver_error_count >= MAX_ERRORS
msg = "previous #{@create_driver_error_count} instantiations of driver #{driver.inspect} failed, not trying again"
- msg << " (#{@create_driver_error.message})"
+ msg += " (#{@create_driver_error.message})"
raise DriverInstantiationError, msg, @create_driver_error.backtrace
end
