`echo "test"|xz|xz -dc --single-stream` will display "test" on terminal,
redirect it to /dev/null.
Cc: Harald Hoyer <harald@xxxxxxxxxx>
Signed-off-by: WANG Cong <xiyou.wangcong@xxxxxxxxx>
---
diff --git a/lsinitrd b/lsinitrd
index 1d953b7..fb3769c 100755
--- a/lsinitrd
+++ b/lsinitrd
@@ -36,7 +36,7 @@ image="${1:-/boot/initramfs-$(uname -r).img}"
CAT=zcat
FILE_T=$(file "$image")
-if echo "test"|xz|xz -dc --single-stream; then
+if echo "test"|xz|xz -dc --single-stream >/dev/null; then
XZ_SINGLE_STREAM="--single-stream"
fi
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