[patch] Use exit instead of return in testcases.

[clm@cygnus.com]

This is a small patch to clean up a couple of testcases.
OK to install?

2000-11-29  Catherine Moore  <clm@redhat.com>

        * gcc.c-torture/execute/va-arg-11.c: Use exit(0).
        * gcc.c-torture/execute/va-arg-21.c: Likewise.


Index: va-arg-11.c
===================================================================
RCS file: /cvs/gcc/egcs/gcc/testsuite/gcc.c-torture/execute/va-arg-11.c,v
retrieving revision 1.1
diff -p -r1.1 va-arg-11.c
*** va-arg-11.c	1999/10/04 22:12:37	1.1
--- va-arg-11.c	2000/11/29 20:21:16
*************** main (void)
*** 25,29 ****
  {
    if (foo (5, 4, 3, 2, 1, 0))
      abort ();
!   return 0;
  }
--- 25,29 ----
  {
    if (foo (5, 4, 3, 2, 1, 0))
      abort ();
!   exit (0);
  }
Index: va-arg-21.c
===================================================================
RCS file: /cvs/gcc/egcs/gcc/testsuite/gcc.c-torture/execute/va-arg-21.c,v
retrieving revision 1.1
diff -p -r1.1 va-arg-21.c
*** va-arg-21.c	2000/10/31 21:30:22	1.1
--- va-arg-21.c	2000/11/29 20:21:22
*************** doit (const char *s, ...) 
*** 44,48 ****
  int main()
  {
    doit ("%s", "hello world\n");
!   return 0;
  }
--- 44,48 ----
  int main()
  {
    doit ("%s", "hello world\n");
!   exit (0);
  }