Code review comment for lp:~verzegnassi-stefano/openstore/add-missing-strings-to-pot

> I think this should be one big string rather than a bunch of separate ones.

It seems it can be done using i18n/gettext, since it doesn't parse "multi-string" translations.
I think we should keep translate them as separate strings. I took the occasion for changing the design of the warning dialog though.