testsuite: fix false positives for du

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/testsuite/du/du-k-works b/testsuite/du/du-k-works
index 417b0da..213e9ba 100644
--- a/testsuite/du/du-k-works
+++ b/testsuite/du/du-k-works
@@ -4,8 +4,10 @@
 dd if=/dev/zero of=file2 bs=1k count=16 2>/dev/null
 # ext4 on images <512M gives 81kb
 # ext3 on images <512M gives 83kb
+# a bsd system reportedly gives 82kb
 test x"`busybox du -k .`" = x"80	." \
   -o x"`busybox du -k .`" = x"81	." \
+  -o x"`busybox du -k .`" = x"82	." \
   -o x"`busybox du -k .`" = x"83	." \
   -o x"`busybox du -k .`" = x"84	." \
   -o x"`busybox du -k .`" = x"88	."
diff --git a/testsuite/du/du-l-works b/testsuite/du/du-l-works
index 426ee89..af87345 100644
--- a/testsuite/du/du-l-works
+++ b/testsuite/du/du-l-works
@@ -6,6 +6,7 @@
 ln file1 file1.1
 dd if=/dev/zero of=file2 bs=1k count=16 2>/dev/null
 test x"`busybox du -l .`" = x"144	." \
+  -o x"`busybox du -l .`" = x"146	." \
   -o x"`busybox du -l .`" = x"148	." \
   -o x"`busybox du -l .`" = x"152	." \
   -o x"`busybox du -l .`" = x"156	."