Fix json_parser to reset errno
Fix json_parser to reset errno

retrieva/pficommon,pfi/pficommon,takei-yuya/pficommon,pfi/pficommon,takei-yuya/pficommon,pfi/pficommon,retrieva/pficommon,retrieva/pficommon,pfi/pficommon,retrieva/pficommon,retrieva/pficommon,takei-yuya/pficommon,takei-yuya/pficommon