an issue from #1361 (comment) was never addressed:

under porcelain mode there's lots of whitespace padding being added to the end of the fields to match the length of the longest field value of the entire output, so too much whitespace is added which causes it to wrap and appear as if an extra line is added. in my case, i have a url (from flexget history | less) which causes it's line (URL | ...) to be 171 characters, but that results in every single line of output to be padded to 171 characters.