XL/fs: MakeVol replies should be consistent. (#1667)
XL/fs: MakeVol replies should be consistent. (#1667)

Fixes #1658
Fixes #1633
hackintoshrao/minio,alexellis/minio,jimjag/minio,krishnasrinivas/minio,koolhead17/minio,NitishT/minio,harshavardhana/minio,aead/minio,fwessels/minio,dvstate/minio,luomeiqin/minio,krishnasrinivas/minio,harshavardhana/minio,harshavardhana/minio,krishnasrinivas/minio,harshavardhana/minio,dvstate/minio,aead/minio,mf-00/newgo,rushenn/minio,donatello/minio,mf-00/newgo,mkash32/minio,fwessels/minio,balamurugana/minio,aead/minio,aead/minio,dutchcoders/minio,NitishT/minio,fwessels/minio,minio/minio,krishnasrinivas/minio-daily,krisis/minio,mkash32/minio,vadmeste/minio,luomeiqin/minio,NitishT/minio,rushenn/minio,luomeiqin/minio,brendanashworth/minio,krisis/minio,hackintoshrao/minio,dvstate/minio,aead/minio,harshavardhana/minio,aead/minio,jimjag/minio,koolhead17/minio,hackintoshrao/minio,jimjag/minio,aead/minio,brendanashworth/minio,jimjag/minio,harshavardhana/minio,minio/minio,donatello/minio,abperiasamy/minio,dutchcoders/minio,abperiasamy/minio,luomeiqin/minio,brendanashworth/minio,aead/minio,rushenn/minio,brendanashworth/minio,dvstate/minio,harshavardhana/minio,NitishT/minio,krishnasrinivas/minio,dutchcoders/minio,harshavardhana/minio,fwessels/minio,hackintoshrao/minio,abperiasamy/minio,alexellis/minio,rushenn/minio,vadmeste/minio,krishnasrinivas/minio-daily,abperiasamy/minio,balamurugana/minio,dutchcoders/minio