[PATCH] Detail.c: do not skip first character when calling xstrdup in Detail()

[Coly Li <colyli@xxxxxxx>]

'Commit b9c9bd9bacaa ("Detail: ensure --export names are acceptable as
shell variables")' duplicates mdi->sys_name to sysdev string by,
	char *sysdev = xstrdup(mdi->sys_name + 1);
which skips the first character of mdi->sys_name. Then when running
mdadm --detail <md device> --export, the output looks like,
	MD_DEVICE_ev_sda2_ROLE=1
	MD_DEVICE_ev_sda2_DEV=/dev/sda2
The first character of md device (between MD_DEVICE and _ROLE/_DEV)
is dropped. The expected output should be,
	MD_DEVICE_dev_sda2_ROLE=1
	MD_DEVICE_dev_sda2_DEV=/dev/sda2

This patch removes the '+ 1' from calling xstrdup() in Detail(), which
gets the dropped first character back.

Reported-by: Arvin Schnell <aschnell@xxxxxxxx>
Fixes: b9c9bd9bacaa ("Detail: ensure --export names are acceptable as 4 shell variables")
Signed-off-by: Coly Li <colyli@xxxxxxx>
Cc: NeilBrown <neilb@xxxxxxxx>
---
 Detail.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Detail.c b/Detail.c
index b3e857a..20ea03a 100644
--- a/Detail.c
+++ b/Detail.c
@@ -284,7 +284,7 @@ int Detail(char *dev, struct context *c)
 			struct mdinfo *mdi;
 			for (mdi  = sra->devs; mdi; mdi = mdi->next) {
 				char *path;
-				char *sysdev = xstrdup(mdi->sys_name + 1);
+				char *sysdev = xstrdup(mdi->sys_name);
 				char *cp;
 
 				path = map_dev(mdi->disk.major,
-- 
2.16.4