Arguments were passed in the wrong order to l7rule_show after the
creation of the l7rule, displaying an invalid error message even when
the command succeeded.
Closes-Bug: #2120920
Change-Id: I880de9c23f4ec7a5664d598e28ebb31a1c8cfb8d
Signed-off-by: Gregory Thiemonge <gthiemon@redhat.com>