git/githistory: fix formatting in *refUpdater
git/githistory: fix formatting in *refUpdater

- indent ref updates by two spaces
- print ref.Name instead of full reference

aleb/git-lfs,Jericho25/-git-lfs_miilkyway,Jericho25/-git-lfs_miilkyway,github/git-lfs,dakotahawkins/git-lfs,dakotahawkins/git-lfs,dakotahawkins/git-lfs,Jericho25/-git-lfs_miilkyway,github/git-lfs,aleb/git-lfs,aleb/git-lfs,github/git-lfs