Log Message:
-----------
Add exit_message wrapper to inform user of negative exit codes.
(signals that caused the process to exit)
Modified Files:
--------------
tin/src:
command.py (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/python/tin/src/command.py.diff?r1=1.2&r2=1.3)