kill-old-processes should be more verbose

• Component: Tools / Tests
• Status: NEW ---

[Lucas Forschler]

http://build.webkit.org/builders/Apple%20Mavericks%20Release%20WK2%20%28Tests%29/builds/1864/steps/kill%20old%20processes/logs/stdio
This shows we killed something, but doesn't say what it was.  It would be nice for debugging purposes if we stated what we were killing.  This will help identify what processes are continually left behind that could be causing problems.

[Lucas Forschler]

kill-old-proccesses on mac currently calls killall with the -v option.
this unfortunately does not echo out the process name being killed, only the ID.

I hesitate to add any heavier logging to this script, such as writing a string which outputs the 'taskToKill'.  I could be convinced if we think this was a good idea.