The result is:

--8<---------------cut here---------------start------------->8---
scheme@(guile-user)> (packages-with-runtime-dependency-on-file)
$8 = (#<package quilt-0.61 gnu/packages/patchutils.scm:85 41f5240> #<package aegis-4.24 gnu/packages/version-control.scm:491 383c240>)
--8<---------------cut here---------------end--------------->8---

These two packages are leaves, so it’s fine to change them to use the
fixed ‘file’.  Done in 351d690.

> Finally, 'file' is a propagated-input for 'intltool', which means that
> if anyone installs 'intltool' in their profile, they will have the buggy
> 'file' in their PATH.

This one is more problematic.  We can try to apply Eric’s patch, but
that’s a lot of rebuild.

Thanks for the analysis,
Ludo’.