selftests/livepatch: add test delimiter to dmesg

Make it bit easier to parse the kernel logs during the selftests by
adding a "===== TEST: $test =====" delimiter when each individual test
begins.

Suggested-by: Petr Mladek <[email protected]>
Signed-off-by: Joe Lawrence <[email protected]>
Reviewed-by: Kamalesh Babulal <[email protected]>
Reviewed-by: Yannick Cote <[email protected]>
Reviewed-by: Petr Mladek <[email protected]>
Acked-by: Miroslav Benes <[email protected]>
Signed-off-by: Petr Mladek <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: joe-lawrence

tools/testing/selftests/livepatch/functions.sh

@@ -264,6 +264,7 @@ function start_test {
 
 	save_dmesg
 	echo -n "TEST: $test ... "
+	log "===== TEST: $test ====="
 }
 
 # check_result() - verify dmesg output