Clean the newlines
Clean the newlines

As in the previous patch we do add a newline after adding the number of
the log line, so this patch clean the additional newlines to avoid having
double newlines.

Signed-off-by: Khouloud Touil <844136ad7e501b526551b3995857996adbf6a7c1@baylibre.com>

kernelci/kernelci-backend,kernelci/kernelci-backend