Broken row frappe.msgprint

How can I broken row using frappe.msgprint?
Tried:

frappe.msgprint(r.message[0]+ "\n" + r.message[1]+ "\n" + r.message[2]);

please try
frappe.msgprint(r.message[0]+ "<br>" + r.message[1]+ "<br>" + r.message[2]);

<br> is a html language, not worked at all…

hmmm, it works from my sideScreenshot from 2017-09-27 22-37-33

I cleaned the cache and works fine!
Thank you!