Your bug report

#31752: 'guix system disk-image --file-system-type=iso9660' is broken

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

The explanation is attached below, along with your original report.
If you require more details, please reply to 31752@debbugs.gnu.org.

-- 
31752: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=31752
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