Fix a refleak in test/bin/json_process.c
Fix a refleak in test/bin/json_process.c

akheron/jansson,markalanj/jansson,attie/jansson,Mephistophiles/jansson,simonfojtu/FireSight,firepick1/FireSight,markalanj/jansson,rogerz/jansson,firepick1/jansson,OlehKulykov/jansson,AmesianX/jansson,slackner/jansson,Mephistophiles/jansson,firepick-delta/FireSight,npmccallum/jansson,chrullrich/jansson,rogerz/jansson,bstarynk/jansson,slackner/jansson,rogerz/jansson,liu3tao/jansson,firepick1/jansson,attie/jansson,akheron/jansson,Vorne/jansson,markalanj/jansson,AmesianX/jansson,firepick1/FireSight,chrullrich/jansson,simonfojtu/FireSight,simonfojtu/FireSight,firepick-delta/FireSight,Vorne/jansson,firepick1/jansson,akheron/jansson,firepick-delta/FireSight,wirebirdlabs/featherweight-jansson,npmccallum/jansson,firepick1/FireSight,liu3tao/jansson,bstarynk/jansson,rogerz/jansson,wirebirdlabs/featherweight-jansson,bstarynk/jansson,OlehKulykov/jansson