Fixies this problem:
* swift-drive-audit needs to be run by root, because only root have
"umount" permission
* swift-object servers typically runs as user swift
* if swift-drive-audit is run by root, /var/cache/swift/drive.recon is
owned by root, with 0o600
* recon middleware (inside swift-object-server) can't read this cache
file: swift-object: Error reading recon cache file
This patch adds "user" option to drive-audit config file. Recon cache
is chowned to this user.
Change-Id: Ibf20543ee690b7c5a37fabd1540fd5c0c7b638c9
9847796f01