libtracefs: Add tracefs_u{ret}probe_alloc to generic man page

The functions tracefs_uprobe_alloc()) and tracefs_uretprobe_alloc() were
missing from the generic libtracefs man page. Add them.

Link: https://lore.kernel.org/linux-trace-devel/20220922154412.3336173-3-rostedt@goodmis.org

Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
1 file changed