#(use-modules (guile-user)) warning

[Urs Liska]

I'm following the Application Usage to define variables on the command line:
http://www.lilypond.org/doc/v2.16/Documentation/usage/command_002dline-usage.html#basic-command-line-options-for-lilypond

When I use the -e command line option and write

#(use-modules (guile-user))

at the beginning of the document I get the following

WARNING: #f: imported module (guile-user) overrides core binding `%module-public-interface'

It is identical with different versions between 2.16.2 and 2.17.27.

Is this warning something to care about or can I ignore it?
Is it possible to suppress this warning? Of course I could simply ignore it, but I want to share what I'm doing right now, and I don't like to introduce ignorable warnings in a 'library' kind of stuff.

Urs