ocaml-migrate-parsetree fails to build on sid using debhelper version 12
(12 is the version of the debhelper package, I haven't touched the DH
compat level) :
dh_install: libmigrate-parsetree-ocamlbuild-ocaml missing files: usr/doc/ocaml-migrate-parsetree-ocamlbuild/{CHANGES.md,README.md,LICENSE.md}
dh_install: missing files, aborting
make: *** [debian/rules:8: binary] Error 25