More multi-char-delimiter func test coverage
More multi-char-delimiter func test coverage

Change-Id: I4cad872ef97313ec19a8e4ef042696565a56d4c5

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