Your bug report

#8857: display-buffer attempt to pop-up frame in batch mode causes "Unknown terminal type" error

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 8857@debbugs.gnu.org.

-- 
8857: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8857
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