At first, it was a bit confusing (separated by comma... by space)
Currently it reads:
"A sequence of points.
The points are two integer coordinates separated by a comma (COMMA, U+002C).
The points are separated by white space."
Perhaps this would be easier to read;
"A sequence of points.
Each point consists of two integer coordinates separated by a comma (COMMA, U+002C).
The points are separated by white space."
Best regards,
Bart