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

tools/testing/selftests/livepatch/functions.sh

···
 
 	save_dmesg
 	echo -n "TEST: $test ... "
+	log "===== TEST: $test ====="
 }
 
 # check_result() - verify dmesg output