Pretty-printer writes extra break at end

[talex5]

This makes it hard to use. e.g.

#require "duration";;
#require "fmt";;
Fmt.pr "Timeout (%a) expired" Duration.pp (Duration.of_min 5);;

prints

Timeout (5 minutes
) expired

[hannesm]

thanks for the report, would you mind to try whether the pp branch (see #6) fixes the issue for you satisfactory?

[hannesm]

also, when using Format, it is advisable to open a box, i.e. Fmt.pr "@[Timeout (%a) expired@]" Duration.pp 23000000001L