There are currently being used %d instead of %s in template string to checkArguments in
https://github.com/googleapis/java-storage/blob/master/google-cloud-storage/src/main/java/com/google/cloud/storage/spi/v1/HttpStorageRpc.java#L692

This makes the output from precondition failure come out awkwardly.

I guess someone with more routine in getting changes into this codebase can make this fix faster than me.