Patch from Andrew Flegg:

Patch from  Andrew Flegg:

    Here's a pretty crude patch to reload /etc/inittab when init receives a
    SIGHUP. The mailing list archives weren't entirely clear on whether or
    not it should already happen, but didn't appear to be.

    The patch:
       * Adds a new function, reload_signal() which just calls
	 parse_inittab() and run_actions(RESPAWN)

       * Before entering the while (1) loop set up SIGHUP to call
	 reload_signal()

       * Modify new_init_action to skip the action if the same command
	 already exists on the same terminal

    This last bit means that changing already running entries is a bit
    hairy as you can end up with, for example, two shells running on the
    same virtual console. However, for solely adding/removing entries this patch
    seems to work quite well.