Optimized dump_indent to reduce the number of fwrite calls.
Optimized dump_indent to reduce the number of fwrite calls.

AmesianX/jansson,OlehKulykov/jansson,AmesianX/jansson,Mephistophiles/jansson,wirebirdlabs/featherweight-jansson,bstarynk/jansson,Mephistophiles/jansson,slackner/jansson,liu3tao/jansson,liu3tao/jansson,chrullrich/jansson,chrullrich/jansson,akheron/jansson,npmccallum/jansson,bstarynk/jansson,bstarynk/jansson,markalanj/jansson,akheron/jansson,wirebirdlabs/featherweight-jansson,akheron/jansson,slackner/jansson,npmccallum/jansson,OlehKulykov/jansson,markalanj/jansson,markalanj/jansson