Merge branch 'ak/typofixes'

Typofixes.

* ak/typofixes:
  t: fix typos
  t/helper: fix a typo
  t/perf: fix typos
  t/unit-tests: fix typos
  contrib: fix typos
  compat: fix typos

t/unit-tests/t-reftable-basics.c

@@ -54,7 +54,7 @@ int cmd_main(int argc UNUSED, const char *argv[] UNUSED)
 		}
 	}
 
-	if_test ("names_length retuns size of a NULL-terminated string array") {
+	if_test ("names_length returns size of a NULL-terminated string array") {
 		const char *a[] = { "a", "b", NULL };
 		check_int(names_length(a), ==, 2);
 	}