client/util: Updates remoteOperationError to accept slice of remoteOperationResult
client/util: Updates remoteOperationError to accept slice of remoteOperationResult

In order to return the resulting error in the order that the remote operation errors occurred.

This avoids potentially confusing output.

Signed-off-by: Thomas Parrott <6b778ce645fb0e3dde76d79eccad490955b1ae74@canonical.com>

hallyn/lxd,hallyn/lxd,stgraber/lxd,lxc/lxd,hallyn/lxd,hallyn/lxd,hallyn/lxd,stgraber/lxd,hallyn/lxd,lxc/lxd,stgraber/lxd,stgraber/lxd,atxwebs/lxd,lxc/lxd,lxc/lxd,atxwebs/lxd,lxc/lxd,stgraber/lxd,stgraber/lxd,atxwebs/lxd,atxwebs/lxd,stgraber/lxd,lxc/lxd,lxc/lxd