dotcloud/docker — pull request #5160 by kzys (2014-04-10 22:49:12+00:00)
Title: Fix utils.FollowSymlinkInScope's infinite loops bug

fs_test.go doesn't finish if Docker's code is placed under a directory
which has symlinks between / and the directory.
For example, the below doesn't finish before the change.

/home -> usr/home
FollowSymlinkInScope("/home/bob/foo/bar", "/home/bob/foo")

Docker-DCO-1.1-Signed-off-by: Kato Kazuyoshi (github: kzys)