Fix malformed json expectations am: 5bdddf911d am: 1d010d4594 am: 06d120cec0 am: f89664e4fa am: 0c25121697

Original change: https://android-review.googlesource.com/c/platform/art/+/2117746

Change-Id: I4bffc712c6642f54f01d6cc96391a178a077cac4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>