An extra "/" was appended to the SystemController usm internal endpoint
which resulted in an incorrect request URL.
Test plan:
PASS: Successfully run "software --os-region-name SystemController show"
PASS: Successfully run "software --os-region-name RegionOne show"
PASS: Successfully run "software show"
PASS: Successfully run "software --os-region-name SystemController
is-deployed"
PASS: Successfully run "software is-deployed"
PASS: Successfully run "software --os-region-name SystemController
delete"
PASS: Successfully run "software delete"
Closes-Bug: 2080067
Change-Id: I4df3b17ab6ebff83a7b8849af3692752ff104dad
Signed-off-by: lzhu1 <li.zhu@windriver.com>