Include the human repo name in gitlab-shell.log when hashed storage is in use
When hashed storage is in use, we lose the actual project name from the logs:
I, [2017-11-17T00:53:48.231482 #24817] INFO -- : Removing project @hashed/6b/86/6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22
f1d49c01e52ddb7875b4b.git from </var/opt/gitlab/git-data/repositories/@hashed/6b/86/6b86b273ff34fce19d6b804eff5a3f5747ada4ea
a22f1d49c01e52ddb7875b4b.git>.
We should send both the disk path and the project name for ease of debugging.