s3api: Stop debug-logging the entire wsgi environment
s3api: Stop debug-logging the entire wsgi environment

Previously, you could not safely turn on debug logging in a production system.

Change-Id: I2a1cbd540ebb57a4c227a08e37f5b64f7ac8ca35

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