Some compilers are quite picky about non-void functions that don't return

anything.

crypto/dsa/dsatest.c

@@ -222,6 +222,7 @@ end:
 static int cb_exit(int ec)
 	{
 	EXIT(ec);
+	return(0);		/* To keep some compilers quiet */
 	}
 
 static void MS_CALLBACK dsa_cb(int p, int n, void *arg)