shutdown -k exits prematurely

On Lucid, "shutdown -k" with a time argument that is not "now" broadcasts the first shutdown warning, then exits without doing anything else. In particular, it does not enter the loop to issue subsequent shutdown warnings. Running "shutdown -k" should do everything except the actual shutdown.

I confirmed by inspecting the source code that this bug is still probably present in the active development sources. The conditional to exit(0) when warn_only is true should probably be moved into the shutdown_now() function.

Version information (but it doesn't really matter because it's still in the development sources):

ii upstart 0.6.5-8 event-based init daemon