Respect line limit in QuickInfo

[majocha]

Fixes problem with the ellipsis as seen in #7783:

Before:

After:

[vzarytovskii]

Wondering if we should add (+ X more) instead of (or in addition to) ellipsis?

[psfinaki]

@majocha do you plan to add anything else here or do you want to have it as-is?

[majocha]

I'm ok with this as a simple fix. We could further improve in another PR.