fix darwin usage of du command

thehajime · thehajime · commit c666a3535003 · 2021-09-10T10:17:23.000+09:00
Signed-off-by: Hajime Tazaki &lt;thehajime@gmail.com&gt;
diff --git a/fs/du_cmd_freebsddarwin_test.go b/fs/du_cmd_freebsddarwin_test.go
@@ -1,4 +1,4 @@
-// +build freebsd
+// +build freebsd darwin
 
 /*
    Copyright The containerd Authors.
diff --git a/fs/du_cmd_unix_test.go b/fs/du_cmd_unix_test.go
@@ -1,4 +1,4 @@
-// +build !windows,!freebsd
+// +build !windows,!freebsd,!darwin
 
 /*
    Copyright The containerd Authors.

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-// +build freebsd`
	`1`	`+// +build freebsd darwin`
`2`	`2`
`3`	`3`	`/*`
`4`	`4`	`Copyright The containerd Authors.`
Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-// +build !windows,!freebsd`
	`1`	`+// +build !windows,!freebsd,!darwin`
`2`	`2`
`3`	`3`	`/*`
`4`	`4`	`Copyright The containerd Authors.`