That's needed to avoid SIGPIPE in RPM. Proposed fix upstream [1]. [1] https://github.com/sclorg/scl-utils/pull/13/commits (first commit)
This bug appears to have been reported against 'rawhide' during the Fedora 27 development cycle. Changing version to '27'.
Fixed in scl-utils 2.0.2. In rawhide now, will pull to f27 in a week or two if no major issues turn up.