`@dots'{} (...) and `@enddots'{} (....)
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Use the `@dots{}' command to generate an ellipsis, which is three
dots in a row, appropriately spaced, like this: `...'. Do not simply
write three periods in the input file; that would work for the Info
file output, but would produce the wrong amount of space between the
periods in the printed manual.
Similarly, the `@enddots{}' command generates an end-of-sentence
ellipsis (four dots) ....