Fix quoting error in unmount command

A misplaced single quote caused the umount command to fail with a
syntax error when unmounting snapshots under the .zfs/snapshot
control directory.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1210

diff --git a/module/zfs/zfs_ctldir.c b/module/zfs/zfs_ctldir.c
index b5c4510fe8ded8e47ed4375e22919cffeb1dc533..622d865df7728d1cde9a603d07ab3ef6e3a1d21c 100644 (file)
--- a/module/zfs/zfs_ctldir.c
+++ b/module/zfs/zfs_ctldir.c
@@ -685,7 +685,7 @@ zfsctl_snapdir_inactive(struct inode *ip)
        "exec 0</dev/null " \
        "     1>/dev/null " \
        "     2>/dev/null; " \
-       "umount -t zfs -n '%s%s'"
+       "umount -t zfs -n %s'%s'"
 
 static int
 __zfsctl_unmount_snapshot(zfs_snapentry_t *sep, int flags)