Fix rootwrapper with tgt-admin
Fix rootwrapper with tgt-admin

Dont use the full path when calling tgt-admin.

LP: #1030850

Change-Id: Ifc7a1960aa67325e9219309e06de292010d7ec46
Signed-off-by: Chuck Short <753a8074f04ffd62a8fff7516e3ae689be8e35ad@canonical.com>

n0ano/ganttclient