In at least some versions of the 'ssh-add' command, adding a SSH key
requires that SSH key is newline terminated. If it is not, ssh-add
doesn't add the key and, instead, unhelpfully prompts for a
passphrase for the key ('Enter passphrase for (stdin):').
This change makes sure the key is terminated with a newline character to
hopefully avoid this issue occurring as often.
Signed-off-by: Sam Lewis <sam.vr.lewis@gmail.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
b5ba370049