Fixes #5002: Package upgrade can fail if /etc/{cron.d,init.d,default}/rudder-agent are missing
Merge pull request #359 from jooooooon/bug_5002/package_upgrade_can_fail_if_etc_cron_d_init_d_default_rudder_agent_are_missing

Fixes #5002: Package upgrade can fail if /etc/{cron.d,init.d,default}/ru...
Merge branch 'branches/rudder/2.6' into branches/rudder/2.9