### Please describe the problem.
git annex repair fails to repair the repo and reports this error:

    git-annex: /tmp/tmprepo.2/.git/gc.pid: removeLink: does not exist (No such file or directory)
    failed
    git-annex: repair: 1 failed


### What steps will reproduce the problem?


### What version of git-annex are you using? On what operating system?
git-annex-5.20140717 on gentoo with use flags: assistant cryptohash dbus desktop-notify dns feed inotify pairing production quvi s3 tahoe tdfa testsuite webapp webapp-secure webdav xmpp

### Please provide any additional information below.

[[!format sh """
~/annex $ git annex repair
Running git fsck ...
Unpacking all pack files.
Unpacking objects: 100% (630/630), done.
Unpacking objects: 100% (630/630), done.
Unpacking objects: 100% (638/638), done.
Initialized empty Git repository in /tmp/tmprepo.2/.git/
Trying to recover missing objects from remote 192.168.1.246_annex.
Unpacking all pack files.
Unpacking objects: 100% (210608/210608), done.
Trying to recover missing objects from remote 192.168.1.246_annex.
Auto packing the repository in background for optimum performance.
See "git help gc" for manual housekeeping.

git-annex: /tmp/tmprepo.2/.git/gc.pid: removeLink: does not exist (No such file or directory)
failed
git-annex: repair: 1 failed


# End of transcript or log.
"""]]

> Provisionally [[done]]; see comment. --[[Joey]]
