commit 7c94ab42ffb47df7759085b11fcbc04cbe8e453f
from: Omar Polo <op@omarpolo.com>
date: Mon Jan 10 19:16:27 2022 UTC

simplify TAILQ_INSERT dance

when a tailq is proprerly initialized, there's no need to check if it's
empty and insert in head position.

commit - 1e84c7b793afb2f25b7515283340a1f730290c3c
commit + 7c94ab42ffb47df7759085b11fcbc04cbe8e453f
blob - 373b881200da8e0c7a0c4e5f05ccf6d98baa56db
blob + f7bc9a69ce83f416eb19cbf84d3cf0796392fd6f
--- ninepscript/script.c
+++ ninepscript/script.c
@@ -1290,10 +1290,7 @@ test_done(int shouldfail, char *name)
 	test->name = name;
 	test->body = finalize(&blocks, NULL);
 
-	if (TAILQ_EMPTY(&tests))
-		TAILQ_INSERT_HEAD(&tests, test, entry);
-	else
-		TAILQ_INSERT_TAIL(&tests, test, entry);
+	TAILQ_INSERT_TAIL(&tests, test, entry);
 
 	ntests++;
 }