Make "Path not found" error more verbose

BZ: 156207

When an error occurs while using a path one does not know which path it
refers to.

Append the unfound path to the error : "Path not found:
/the/path/that/was/not/found"

Change-Id: If53c1a5c301906b464d38f604d6e97029f83ae3f
Signed-off-by: Kevin Rocard <kevinx.rocard@intel.com>
3 files changed