Fix bug 452. Work around problem caused by FmtMarks not having a length. CVS: ---------------------------------------------------------------------- CVS: Enter Log. Lines beginning with `CVS:' are removed automatically CVS: CVS: Committing in . CVS: CVS: Modified Files: CVS: fmt/xp/fv_View.cpp ptbl/xp/pf_Frag_FmtMark.cpp CVS: ptbl/xp/pt_PT_ChangeSpan.cpp CVS: ----------------------------------------------------------------------
