[Bug 56325] Prefix path string in wineboot dialog is cut off

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=56325

--- Comment #3 from Nikolay Sivov  ---
Even if that wrapped you could make it 10 times longer anyway, and user32
dialogs are not meant to automatically dynamically resize for content. Instead
maybe we could collapse the path, keeping start and end parts, adding some dots
in between. Maybe there is even a function for that.