error: Strip trailing '\n' from error string arguments (again)

error: Strip trailing '\n' from error string arguments (again)

Commit 6daf194d, be62a2eb and 312fd5f got rid of a bunch, but they
keep coming back.  Tracked down with the Coccinelle semantic patch
from commit 312fd5f.

Cc: Fam Zheng <[email protected]>
Cc: Peter Crosthwaite <[email protected]>
Cc: Bharata B Rao <[email protected]>
Cc: Dominik Dingel <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Jason J. Herne <[email protected]>
Cc: Stefan Berger <[email protected]>
Cc: Dr. David Alan Gilbert <[email protected]>
Cc: Changchun Ouyang <[email protected]>
Cc: zhanghailiang <[email protected]>
Cc: Pavel Fedin <[email protected]>
Signed-off-by: Markus Armbruster <[email protected]>
Reviewed-by: Dr. David Alan Gilbert <[email protected]>
Acked-by: Cornelia Huck <[email protected]>
Acked-by: Bharata B Rao <[email protected]>
Acked-by: Fam Zheng <[email protected]>
Signed-off-by: Markus Armbruster <[email protected]>
Reviewed-by: Eric Blake <[email protected]>
Message-Id: <1450452927[email protected]>