Version 2.4.0-rc2

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Add version info to lttng-tracer.ko modinfo

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Fix: quote event name in metadata

Allows adding events with a "-" within the name with --probe or
--function.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>