update comment in bson-json.c
update comment in bson-json.c

ajdavis/libbson,rcsanchez97/libbson,mapr/libbson,mongodb/libbson,mapr/libbson,mapr/libbson,ajdavis/libbson,rcsanchez97/libbson,mongodb/libbson,ajdavis/libbson,mongodb/libbson,rcsanchez97/libbson