Avoid logging the body of the http 206 response (#6258)
Avoid logging the body of the http 206 response (#6258)

When an S3 client issues a GET request with range specified, Minio
server returns some partial data with 206 http code. The latter
is sent in MINIO_HTTP_TRACE output which is incorrect. This PR
fixes the issue.
jimjag/minio,krishnasrinivas/minio,NitishT/minio,fwessels/minio,fwessels/minio,krisis/minio,balamurugana/minio,jimjag/minio,harshavardhana/minio,krishnasrinivas/minio,harshavardhana/minio,harshavardhana/minio,minio/minio,krishnasrinivas/minio,NitishT/minio,NitishT/minio,jimjag/minio,harshavardhana/minio,harshavardhana/minio,harshavardhana/minio,krishnasrinivas/minio,NitishT/minio,aead/minio,vadmeste/minio,fwessels/minio,krisis/minio,jimjag/minio,harshavardhana/minio,aead/minio,aead/minio,donatello/minio,balamurugana/minio,aead/minio,fwessels/minio,donatello/minio,harshavardhana/minio,aead/minio,aead/minio,vadmeste/minio,minio/minio,aead/minio,aead/minio