The backup tool prints out a summary line that is not helpful:

11 changed files: differs by 3389 granularity blocks in 3389 total granularity blocks

In this example the 3389 is printing exact same value twice and that is not useful nor helpful. The value it is currently printing is the number of changed blocks. The 2nd value is not the total number possible and is a bug.

Determine if this line is helpful at all, and if so, fix the tool to count and print out the correct number of total blocks.