The gprc execsync client call doesn't populate `ExecSyncResponse` on
error at all. You just get an error.
This patch modifies the code to include command's streams, exit code
and error direcly into the error. `ocic` will then print useful
infomation in the cli, otherwise it won't.
Signed-off-by: Antonio Murdaca <runcom@redhat.com>
In several places, we previously didn't output the $output of the
failing command, leading to confusion when debugging. A proper fix is to
alias oci{c,d} in helpers.sh like runC does, but that can come later.
Signed-off-by: Aleksa Sarai <asarai@suse.de>
