Bug: --parse-docstrings violates margin

[mmottl]

Describe the bug

Passing --parse-docstrings may lead to output that violates the configured margin.

❯ ocamlformat --version
0.26.2

How to Reproduce

Formatted file foo.ml:

(** xxxxx xx xxxxxx xxxxxx xxxxxx xxxxx xxxxxxx xxx xxxxxx xxx xxxx
    xxxxxxxxxx. *)

Command line (explicitly sets a margin of 80):

ocamlformat --enable-outside-detected-project -m 80 --parse-docstrings foo.ml

Output has an 82 character line:

(** xxxxx xx xxxxxx xxxxxx xxxxxx xxxxx xxxxxxx xxx xxxxxx xxx xxxx xxxxxxxxxx. *)

[Julow]

Thanks for reporting. Should be fixed by #2550