discrepancies with size reporting

[stevekm]

I noticed this while testing the latest master

On my home dir (~150GB, 849621 files), duh reports 209.6G

du -shc ~ reports 138G

And macOS Finder reports different values altogether

I suspect macOS filesystem has some nonstandard reporting going on. As it is, I dont think anything in duh needs to be changed, but this discrepancy should be noted since it will likely cause confusion during usage.

Another note is that I think du is counting some value based on inodes while duh and possibly macOS is reporting based on bytes. Need clarification on the differences between these reporting methods.