strange character "\f" found in source

[Mark Polesky]

I found a strange "\f" character on line 2317 of
define-markup-commands.scm:
http://git.savannah.gnu.org/gitweb/?p=lilypond.git;a=blob;f=scm/define-markup-commands.scm;#l2317

There are more in the same file, on lines 3036, 3082, 3115.

I tried using savannah's grep on the web to see if there
are more in the source code, but I can't get a single hit.
And I got this a lot: "XML Parsing Error: not well-formed".

I also tried these within the Git Bash, but they don't work
either:

grep -i -G \f scm/*
grep -i -E \f scm/*
git grep -i -G \f scm/*
git grep -i -E \f scm/*

Anyone know how to do this?

Thanks.
- Mark