Your bug report

#17892: 24.3; display error when mode-line-format is set to nil

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 17892@debbugs.gnu.org.

-- 
17892: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=17892
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