Fix parserTest setup: siteinfo API returns '' to indicate true.

Follow-up patch to I26444e309400e3a6b1ca3ccade125800e2fa0e77.

Bug: 66723
Change-Id: Ia17297ccf4f13d2aac005aa95cd0f147fe573d9d
Merge "Fix parserTest setup: siteinfo API returns '' to indicate true."