Yeah, it’s caused by a combination of EBD and Divi. What’s happening is that there is a span tag with a class of “et-icon” on it. On most themes, that does nothing. On the Divi theme, they have an icon for it, which is displayed on the page. However, it’s only like 100 pixels wide or something like that & the download title is a child of that span, so it inherits the width of the span (which is the width of the icon).
I’m not sure of the best way to fix it. When I look at the page in Firebug or Chrome Dev Tools, I can delete the class=et-icon from that span tag & then it’s wide enough & stays on one line. However, it’s not just a normal link, instead it kind of looks like a button. So, I think that’s the same thing, more or less. On the a href tag there are two class names ‘icon-button’ and ‘download-icon’, which are producing the button effect. You don’t really have to change those, but you could I suppose. Anyway, I’m leaving it up to you to figure out how you want to change these classes or remove them or override them or whatever … hopefully you can get it in good shape without the need to edit plugin files themselves, but if you have to you have to….