fix: add 'static inline' to lttng_kretprobes_init_event()
Add missing 'static inline' to lttng_kretprobes_init_event() placeholder
function when CONFIG_KRETPROBES is not set. Also some minor reformating
to improve readability.
Change-Id: I23cf83dff99f4168ae0f339c2b4911796e0b0273 Signed-off-by: Michael Jeanson <mjeanson@efficios.com> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>