FreeFontPath message on X.org shutdown

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X.org on my 6.2-PRERELEASE always writes the following to console when
exit:

waiting for X server to shut down FreeFontPath: FPE
"/usr/X11R6/lib/X11/fonts/misc/" refcount is 2, should be 1; fixing.

I saw it on previous versions of X.org and FreeBSD too. I googled for it
but didn't find something for fix. It seems this message is very common.
Is it error or not?