Do not define unit strings as byte strings
Do not define unit strings as byte strings

They should be just strings in both Python 2 and Python 3.

rvykydal/blivet,dwlehman/blivet,AdamWill/blivet,jkonecny12/blivet,jkonecny12/blivet,vpodzime/blivet,vojtechtrefny/blivet,rvykydal/blivet,AdamWill/blivet,dwlehman/blivet,vojtechtrefny/blivet,rhinstaller/blivet,rhinstaller/blivet,vpodzime/blivet