- Fix the incorrect environment variable.
'OS_URL' should be 'OS_AUTH_URL'.
- Add another should be unset environment variable.
And it will not require you input password after running the
command until you unset the 'OS_PASSWORD'.
Change-Id: Ice02b301e03c06da9fdb26b3bfcb3fd4d8be1fcb
Closes-Bug: #1632992