dist/init/linux-sysvinit: improve legacy compatibility (#1002)
dist/init/linux-sysvinit: improve legacy compatibility (#1002)

* dist/init/linux-sysvinit: pass --oknodo for --start as well

* dist/init/linux-sysvinit: manually rm PIDFILE

Since start-stop-daemon --remove-pidfile is new and not present
everywhere.

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