Added information message before invoking test_runner from ACK CLI.
Added information message before invoking test_runner from ACK CLI.

bpwook/auto-cert-kit,bpwook/auto-cert-kit,rdobson/auto-cert-kit,xenserver/auto-cert-kit,vivekkumac/auto-cert-kit,rdobson/auto-cert-kit,vivekkumac/auto-cert-kit,xenserver/auto-cert-kit