1) Instead of callers allocating the space for the fmt_scan()
output, have fmt_scan() do it. Callers would pass a **char
instead of a char array and be responsible for free'ing the
space when they're done.
2) fmt_scan() would use some function of width as the initial
size of the space and realloc by 2X as needed.
3) To not break existing user scripts, width would continue to
include the trailing newline. Add support for an optional
profile setting to not include the trailing newline.
4) Add support for 0 width indicating infinite width.
This all seems reasonable to me.
--Ken
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