
1. avoid "null" (NoneType) env variables 2. ensures "quote()" gets only string Change-Id: Id62b0dd5e952cb70aa4d773195dcab6dc78cae1a
1. avoid "null" (NoneType) env variables 2. ensures "quote()" gets only string Change-Id: Id62b0dd5e952cb70aa4d773195dcab6dc78cae1a