Your bug report

#22012: 25.1.50; gdb broken by (json-string-format "doesn't start with `\"'!")

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 22012@debbugs.gnu.org.

-- 
22012: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=22012
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