region_json bug fix 1.region_bytes value when create region_json vindex 2.rename function name according golint hint
region_json bug fix
1.region_bytes value when create region_json vindex
2.rename function name according golint hint

Signed-off-by: JohnnyThree <3912d2ec6fd6df2cb0531a8ba42fe5ac716f6507@gmail.com>

vitessio/vitess,mahak/vitess,tinyspeck/vitess,vitessio/vitess,vitessio/vitess,tinyspeck/vitess,vitessio/vitess,mahak/vitess,mahak/vitess,tinyspeck/vitess,vitessio/vitess,vitessio/vitess,tinyspeck/vitess,mahak/vitess,tinyspeck/vitess,vitessio/vitess,mahak/vitess,mahak/vitess,tinyspeck/vitess,mahak/vitess,mahak/vitess,tinyspeck/vitess,vitessio/vitess