A space before ":" is unnecessary because of JSON.
So this patch removes the blanks before ':' for
v2 os-virtual-interfaces integrated test.
Change-Id: I20965a183a6a00e263cd0fdd91a3337162ecbe9b
Adds tests and templates for testing of the virtual interfaces
API extension. Tests both json and XML API functionality.
Change-Id: I95f4e6667c3c2df123246d73498f13d826e3866a