CMFM: Ignore stderr from stat list command

We don't need "No such file or directory" from path/.* or path/* because
is previously checked by ls, and it is only returned when no matches were found,
which indeed it is not an error.
Signed-off-by: jruesga <jorge@ruesga.com>

Change-Id: I4fa0ef947a30e42a4cccd0c95855c4953a34e874