mount: fix path leak
mount: fix path leak

canonicalize_path() does not free/touch it's argument; no need to strdup()
here.

Coverity cid 39

Signed-off-by: Sage Weil <c5b6ff1fd4f0bde10db63d7a3e07166cf6c4229f@dreamhost.com>

ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph