template: provide a termwidth keyword (
issue5395)
We want to provide terminal-sized output. As a starting point, expose the
terminal width to the templater for use in things like fill.
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<style type="text/css">
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p.p2 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Helvetica; min-height: 14.0px}
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