chenxing 01265c5d2f [install] Update unset environment variable step
- 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
2016-10-30 23:43:42 +00:00
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