Do not add leading/trailing ellipses when the string is less than excerpt lenght

Thanks for reporting this issue.
However, I see this a bit differently. To me, the ellipses not only suggest that text was actually truncated, but also that the field value from which the snippet was taken is not the only text on the entire entity. Which is nearly always the case.
I’m open to hearing others’ opinions on this, though, I certainly don’t have a strong opinion either way. Also, if you think it’s not that uncommon to have just a single text value for a result item then we can certainly think about removing the ellipses (if appropriate) in this case – at least if it doesn’t complicate the code too much.