Merge branch 'jc/hash-object-fsck-tag'

Using "hash-object --literally", test one of the new breakages
js/fsck-tag-validation topic teaches "fsck" to catch is caught.

* jc/hash-object-fsck-tag:
t1450: make sure fsck detects a malformed tagger line

diff --cc t/t1450-fsck.sh
Simple merge