Use correct syntax for passing DEVLINKS to mdadm from udev

 ${DEVLINKS}
is not valid udev syntax, and is passed through uninterpreted.
 $env{DEVLINKS}
or
  %e{DEVLINKS}
is correct.

Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/mdadm.8.in b/mdadm.8.in
index 461c5de1..e0747fb8 100644
--- a/mdadm.8.in
+++ b/mdadm.8.in
@@ -2947,7 +2947,7 @@ This is the only context where the aliases are used.  They are
 usually provided by a
 .I udev
 rules mentioning
-.BR ${DEVLINKS} .
+.BR $env{DEVLINKS} .
 
 .IP +
 Does the device have a valid md superblock?  If a specific metadata