pretty-print #:width option

[Kevin Ryde]

Looking at the new #:width option on pretty-print, I noticed

        (use-modules (ice-9 pretty-print))
        (pretty-print (make-list 25 'x) #:width 1000)

gives

        (x x
           x
           ...
           x)

where I hoped, with such a big width, to get one line

        (x x x ... x)

Nosing around the code I guess max-expr-width is putting a hard limit
of 50 columns on "expressions" like this.

Doesn't seem terribly logical, but perhaps there's some reasoning
behind it.  #:width works to reduce the permitted columns at least.