scripts: scripts-library.sh: Do not use the '-m' option on tracepath
scripts: scripts-library.sh: Do not use the '-m' option on tracepath

The -m option as added 4 years ago, yet openSUSE ships an even older
version so the -m option is not available there and we are seeing the
followign errors:

opensuse423: tracepath: invalid option -- 'm'
opensuse423: Usage: tracepath [-n] [-b] [-l <len>] [-p port] <destination>
opensuse423: tracepath6: invalid option -- 'm'
opensuse423: Usage: tracepath6 [-n] [-b] [-l <len>] [-p port] <destination>

Lets try to use tracepath without the -m option if the former fails.

Link: https://github.com/iputils/iputils/commit/608419a7804caf36a359875d2fdae0b3eb181387
Change-Id: Ife7f393f484212cf520e8f1cf337ef94df2a3ba4

openstack/openstack-ansible,cfarquhar/openstack-ansible,cfarquhar/openstack-ansible,openstack/openstack-ansible,yanyao/openstack-ansible,stackforge/os-ansible-deployment,bunchc/openstack-ansible,bunchc/openstack-ansible,stackforge/os-ansible-deployment,yanyao/openstack-ansible