If a command line tool like init or daemon dies the user might want to
re-run the tool using --show-stack-trace to collect the complete trace
to include in a bug report, or use to debug the application.
Change-Id: I166699004642970c1424b0be6ca9f22f766e5f80
Signed-off-by: Shawn O. Pearce <sop@google.com>