Calls to strlen are costly, so avoid calling strln as much as we can.
Reported-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Jean Delvare <jdelvare@suse.de> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>