* cmp/cmp-detects-difference: Simplify return code negation.
* false/false-returns-failure: Likewise.
* tar/tar-demands-at-least-one-ctx: Likewise.
* tar/tar-demands-at-most-one-ctx: Likewise.
diff --git a/testsuite/cmp/cmp-detects-difference b/testsuite/cmp/cmp-detects-difference
index b5544f9..aa07444 100644
--- a/testsuite/cmp/cmp-detects-difference
+++ b/testsuite/cmp/cmp-detects-difference
@@ -1,7 +1,3 @@
echo foo >foo
echo bar >bar
-if busybox cmp -s foo bar; then
- return 1
-else
- return 0
-fi
+! busybox cmp -s foo bar