fixed final remaining Google Closure warning
fixed final remaining Google Closure warning

enketo/enketo-legacy,makinacorpus/enketo,makinacorpus/enketo,makinacorpus/enketo,SEL-Columbia/enketo,SEL-Columbia/enketo,makinacorpus/enketo,makinacorpus/enketo,HydroLogic/enketo,HydroLogic/enketo,makinacorpus/enketo,HydroLogic/enketo,enketo/enketo-legacy,enketo/enketo-legacy