tests: cosmetic - fix typos

Signed-off-by: Philippe Gerum <rpm@xenomai.org>

tests/heap-torture.c

@@ -2,7 +2,7 @@
  * SPDX-License-Identifier: MIT
  *
  * Copyright (C) 2018 Philippe Gerum <rpm@xenomai.org>
- * Derived from Xenomai heapmem smokey test (https://xenomai.org/)
+ * Derived from Xenomai's heapmem smokey test (https://xenomai.org/)
  */
 
 #include <sys/types.h>

tests/sched-quota-accuracy.c

 /*
  * SPDX-License-Identifier: MIT
  *
- * Adapted from Xenomai smokey/sched-quota test (https://xenomai.org/)
+ * Adapted from Xenomai's smokey/sched-quota test (https://xenomai.org/)
  * Copyright (C) Philippe Gerum <rpm@xenomai.org>
  * Relicensed by its author from GPLv2 to MIT.
  */

tests/sched-tp-accuracy.c

 /*
  * SPDX-License-Identifier: MIT
  *
- * Adapted from Xenomai smokey/sched-tp test (https://xenomai.org/)
+ * Adapted from Xenomai's smokey/sched-tp test (https://xenomai.org/)
  * Copyright (C) Philippe Gerum <rpm@xenomai.org>
  * Relicensed by its author from GPLv2 to MIT.
  */

tests/stax-lock.c

@@ -44,7 +44,7 @@ static sig_atomic_t done;
 
 static bool verbose;
 
-static int timeout_secs = 3;	/* Default to 5s runtime. */
+static int timeout_secs = 3;	/* Default runtime. */
 
 static void *test_thread(void *arg)
 {