smb: cached directories can be more than root file handle

[ Upstream commit 128630e1 ]

Update this log message since cached fids may represent things other
than the root of a mount.

Fixes: e4029e07 ("cifs: find and use the dentry for cached non-root directories also")
Signed-off-by: Paul Aurich <paul@darkrain42.org>
Reviewed-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>