Your bug report

#11559: cksum needs to be line buffered on lines of md5sum

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

The explanation is attached below, along with your original report.
If you require more details, please reply to 11559@debbugs.gnu.org.

-- 
11559: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=11559
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