NearInfinity and dialog.tlk - did I mess things up?

Ahoy!
I edited a weapon's description in Baldur's Gate EET via NearInfinity and forgot to backup dialog.tlk although I was reminded.
I did not add anything, just changed two numbers to make the description fit its weapon's stats. I wasn't aware that the complete dialog.tlk would be changed / rebuild / recompiled whatever.
After having done this I read here in this Forum that dialog.tlk should not be edited via NearInfinity. I didn't edit it directly but via the identified item's description. So did I mess up the dialog.tlk or even the whole installation?
Would be nasty to run into a plotstopper in a few months because of my mistake.
The modification itself worked and so far there have been no errors.
Also: How do I know that there is an error in these regards? Wrong dialogue for some situations or crash to desktop?
I would be happy for any helpful thoughts on this matter.
Thanks in advance
Quichybo