The `-B' and `--ignore-blank-lines' options ignore insertions or deletions of blank lines. These options normally affect only lines that are completely empty; they do not affect lines that look empty but contain space or tab characters. With these options, for example, a file containing
1. A point is that which has no part. 2. A line is breadthless length. -- Euclid, The Elements, Iis considered identical to a file containing
1. A point is that which has no part. 2. A line is breadthless length. -- Euclid, The Elements, I