### Please describe the problem.
When syncing from server A (real server) to server B (a synology NAS) it fails on git-upload-pack and -receive-pack

### What steps will reproduce the problem?
git-annex sync


### What version of git-annex are you using? On what operating system?
on server A: 3.20121017 (yeah, I should update)
on server B: 5.20131220-g73492b2

### Please provide any additional information below.

On server B, after running ./runshell
[[!format sh """
$ git-upload-pack
/volume1/downloads/git-annex.linux/shimmed/sh/sh: 19: git-upload-pack: not found
$ git-receive-pack
/volume1/downloads/git-annex.linux/shimmed/sh/sh: 20: git-receive-pack: not found
"""]]

> [[fixed|done]]; added git, git-upload-pack, and git-receive-pack wrappers
> to git-annex.linux/. Also to equivilant place in OSX app. --[[Joey]]
