[PATCH] koji - print reason of failed task in output of taskinfo command

[Dan Horák]

During the running the mass-rebuild for Fedora/s390x I have found that
it would be useful if koji-cli could return also the reason for failed
task. Same information can be seen in taskinfo web interface. Usually
build failure with details in root.log means some missing/broken
dependency in buildroot, details in build.log mean a real failure where
a manual inspection is needed, etc.

The result is in the attached patch.


Dan