When iasl is invoked with 'iasl -T ALL', and everything works correctly,
it still exits with a non-zero value.  Exit with zero if all is well.

Signed-off-by: Al Stone <ahs3@redhat.com>

diff -Naur acpica-unix2-20190816/source/compiler/asloptions.c acpica-unix2-20190816.fix/source/compiler/asloptions.c
--- acpica-unix2-20190816/source/compiler/asloptions.c	2019-08-16 09:01:30.000000000 -0600
+++ acpica-unix2-20190816.fix/source/compiler/asloptions.c	2019-10-29 15:52:40.987156555 -0600
@@ -111,7 +111,7 @@
         {
             exit (-1);
         }
-        exit (1);
+        exit (0);
     }
 
     /* Next parameter must be the input filename */