Hi,

The docstring of directory-file-recursively in lisp/files.el is unclear
about the include-directories optional argument. It currently reads

"Optional argument INCLUDE-DIRECTORIES non-nil means also include
in the output directories whose names match REGEXP."

Perhaps this could be rewritten as

"If optional argument INCLUDE-DIRECTORIES is non-nil, the returned list
also includes directories whose names match REGEXP."

Thanks,
Arun