* DELETE_ON_ERROR: [SV 48061] Use "exit 1" for portability.

Reported by Joel Fredrikson <Joel.Fredrikson@it.uu.se>
diff --git a/tests/scripts/targets/DELETE_ON_ERROR b/tests/scripts/targets/DELETE_ON_ERROR
index db97093..f0d9f9b 100644
--- a/tests/scripts/targets/DELETE_ON_ERROR
+++ b/tests/scripts/targets/DELETE_ON_ERROR
@@ -6,17 +6,17 @@
 
 run_make_test('
 .DELETE_ON_ERROR:
-all: ; false > $@
+all: ; exit 1 > $@
 ',
-              '', "false > all\n#MAKE#: *** [#MAKEFILE#:3: all] Error 1\n#MAKE#: *** Deleting file 'all'", 512);
+              '', "exit 1 > all\n#MAKE#: *** [#MAKEFILE#:3: all] Error 1\n#MAKE#: *** Deleting file 'all'", 512);
 
 run_make_test('
 .DELETE_ON_ERROR:
 all: foo.x ;
 %.x : %.q ; echo > $@
-%.q : ; false > $@
+%.q : ; exit 1 > $@
 ',
-              '', "false > foo.q\n#MAKE#: *** [#MAKEFILE#:5: foo.q] Error 1\n#MAKE#: *** Deleting file 'foo.q'", 512);
+              '', "exit 1 > foo.q\n#MAKE#: *** [#MAKEFILE#:5: foo.q] Error 1\n#MAKE#: *** Deleting file 'foo.q'", 512);
 
 # This tells the test driver that the perl test script executed properly.
 1;