Suppressing Differences in Blank Lines

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, I

is 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

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