patch to fix process name: omkmigd -> real name

Here's a patch to fix the process name on the migrated node.  Please review.

If you run top or look in /proc/<pid>/status the name still shows up as omkmigd. This patch fixes that.  It calls proc_pid_cmdline to get the real name, strips off any preceeding path information to just show the executable name and then calls set_task_comm to update the process struct. The process will show up on the remode node as it does on the home node.

Matt