Fix up intendation of PRIVATE_ROBOLECTRIC_SCRIPT.

Test: EXPERIMENTAL_USE_OPENJDK9=1.8 make \
 RunSettingsLibRoboTests RunBluetoothRoboTests \
 CarMessengerRoboTests RunEmergencyInfoRoboTests \
 RunManagedProvisioningRoboTests PackageInstallerRoboTests \
 RunSettingsRoboTests RunStorageManagerRoboTests
Change-Id: I802a9056fd1abad387e3bc57cd57c0ef75765ec9
1 file changed