stdlib/tst-qsort2.c: Fix off-by-one argc interpretation error

This fixes an off-by-one argc interpretation error (argv[0] is included
in the count) in stdlib/tst-qsort2.c causing a segfault if the program
is called with one command-line argument only (argv[2] is NULL in that
case).

ChangeLog

@@ -1,3 +1,8 @@
+2014-06-20  Maciej W. Rozycki  <macro@codesourcery.com>
+
+	* stdlib/tst-qsort2.c (main): Fix off-by-one argc interpretation
+	error.
+
 2014-06-20  Joseph Myers  <joseph@codesourcery.com>
 
 	* sysdeps/unix/sysv/linux/kernel-features.h

stdlib/tst-qsort2.c

@@ -70,7 +70,7 @@ int
 main (int argc, char **argv)
 {
   int ret = 0;
-  if (argc >= 2)
+  if (argc >= 3)
     ret |= test (atoi (argv[1]), atoi (argv[2]));
   else
     {