Remove the nullptr initialization and change the message for object file failure. Change-Id: I14b80b47b65893c55810e7f715c1b8fc643c5125 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/19949 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com> Tested-by: kokoro <noreply+kokoro@google.com>