trace-cmd show: Update help message for --hist and --trigger options

The trace-cmd show help message was missing the --hist and --trigger
options. These are quite useful options and should be visible to the user
and not hidden as Easter eggs!

Also update the bash completion script to help out with the event list.

Link: https://lore.kernel.org/20250411091353.13f2a48a@gandalf.local.home
Fixes: 3e930655b ("trace-cmd show: Add --hist and --trigger options")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2 files changed