Fix PUT file upload.
Fix PUT file upload.

boothj5/webdis,nicolasff/webdis,boothj5/webdis,cauchycui/webdis,nicolasff/webdis,nicolasff/webdis,mrkeng/webdis,mrkeng/webdis,mrkeng/webdis,boothj5/webdis,mrkeng/webdis,cauchycui/webdis,boothj5/webdis,cauchycui/webdis,cauchycui/webdis,nicolasff/webdis,nicolasff/webdis