Fix format specifier for boolean value.
Fix format specifier for boolean value.

Change-Id: I33bf9aa0487588e0d296e612bce51d181e49d6d3
Reviewed-on: http://review.couchbase.org/42499
Tested-by: Aliaksey Artamonau <3c875bcfb3adf2a65b2ae7686ca921e6c9433147@gmail.com>
Reviewed-by: John Liang <e1e1383402f9cdee00b021b8a653005f3061b036@gmail.com>
Reviewed-by: Aliaksey Kandratsenka <340b8e09ca65cd3fc686427fcfed17e87eaf61e2@gmail.com>

t3rm1n4l/gometa,couchbase/gometa