ci(lts): email only non-zero score patches

This changes the email content to only email those patches which have
non-zero score. This is in order to reduce the noise from patches with
score of zero.

Signed-off-by: Okash Khawaja <okash@google.com>
Change-Id: I443899dfa003c399e5751cc5e1b01e8b08a9ae3e
1 file changed