rc.d/zfs: align zfs mount verbosity in host and jail environments

ZFS script runs different startup seqneces depending on where it runs:
on the host (`zfs_start_main()`) or in a jail (`zfs_start_jail()`):

- `zfs_start_main()` mounts ZFS datasets in verbose mode `zfs mount -va`
- `zfs_start_jail()` mounts ZFS datasets silently `zfs mount -a`.

This change aligns the verbose levels.

NO_ISSUE

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/2030

1 files changed, 1 insertions, 1 deletions

diff --git a/libexec/rc/rc.d/zfs b/libexec/rc/rc.d/zfs
index 99156332e47b..7c8c3af28d31 100755
--- a/libexec/rc/rc.d/zfs
+++ b/libexec/rc/rc.d/zfs
@@ -19,7 +19,7 @@ required_modules="zfs"
 zfs_start_jail()
 {
 	if check_jail mount_allowed; then
-		zfs mount -a
+		zfs mount -va
 	fi
 }