WIP: Arcyd use phlgitx_ignoreident
abdi_repo: Reformat lines to look nicer
squash! 157cc1e WIP: Arcyd use phlgitx_ignoreident

Test Plan:
$ ./precommit.sh

Check that new repos are ignoring ident and that 'arcyd fsck' will
repair the attributes file.
$ ./testbed/arcyd/test_shell.sh
    $ cd ../arcyd2
    $ arcyd fsck
    $ rm var/repo/localhost_fs1_origin/.git/info/attributes
    $ arcyd fsck
    'var/repo/localhost_fs1_origin' is not ignoring ident attributes
    use '--fix' to attempt to fix the issues
    $ arcyd fsck --fix
    'var/repo/localhost_fs1_origin' is not ignoring ident attributes
    setting var/repo/localhost_fs1_origin to ignore ident ..
    $ arcyd fsck