Ignore missingSpaceBeforeDate messages when running git-fsck(1)
Repochecks for projects fail with the error below as per this ticket:
error in tag 5562545645baea8e3d8409d712ab0a5da90e355c: missingSpaceBeforeDate: invalid author/committer line - missing space before date
Apparently, we only disable these consistency checks for fetches and pushes, an not when running git-fsck(1) itself