Actually interpolate error message
Actually interpolate error message

Also, drop translation for the error message to improve search-ability.

Change-Id: I24e417ca7500bc9455d5307e6712517c75b2cd25
Partial-Bug: 1674543

tipabu/swift,tipabu/swift,tipabu/swift,openstack/swift,openstack/swift,tipabu/swift,swiftstack/swift,swiftstack/swift,swiftstack/swift,openstack/swift,openstack/swift