Fix 'unexpected operator' bashism

The == operator is specific to bash, replace it with the more
correct = operator for sh.  This bug can prevent correct booting
when using a zfs root pool.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #416

diff --git a/dracut/90zfs/parse-zfs.sh.in b/dracut/90zfs/parse-zfs.sh.in
index eaa4524..13697b9 100755 (executable)
--- a/dracut/90zfs/parse-zfs.sh.in
+++ b/dracut/90zfs/parse-zfs.sh.in
@@ -48,7 +48,7 @@ esac
 
 # Make sure Dracut is happy that we have a root and will wait for ZFS
 # modules to settle before mounting.
-if [ "${wait_for_zfs}" == "1" ]; then
+if [ "${wait_for_zfs}" = "1" ]; then
        ln -s /dev/null /dev/root 2>/dev/null
        echo '[ -e /dev/zfs ]' > $hookdir/initqueue/finished/zfs.sh
 fi