Linux Kernel Markers: fix samples to follow format string standard

Add the field names to marker example format string.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/samples/markers/probe-example.c b/samples/markers/probe-example.c
index 238b2e3..a367975 100644
--- a/samples/markers/probe-example.c
+++ b/samples/markers/probe-example.c
@@ -53,7 +53,7 @@
 static struct probe_data probe_array[] =
 {
 	{	.name = "subsystem_event",
-		.format = "%d %s",
+		.format = "integer %d string %s",
 		.probe_func = probe_subsystem_event },
 	{	.name = "subsystem_eventb",
 		.format = MARK_NOARGS,