Re: End-of-sentence spacing

[M Douglas McIlroy]

The words about double spacing quoted below can be misread as unconditional
advice. I suggest replacing "In" with "In this case".

Also so much mention of AT&T strikes me as clutter. At least the first
instance would better be dropped.

"If a second argument is never given to the 'ss' request, GNU 'troff'
separates sentences as AT&T 'troff' does.  In input to GNU 'troff', as with
AT&T 'troff', a sentence should always be followed by either a newline or
two spaces."

Doug