btrfs-progs: docs: update formatting of btrfs-property

Reported by a wiki user, that there are formatting artifacts in the
'get' section:

in html rendered as "The -t <em><type></em> option can be..."

This is probably due to the nesting '' and <>. We don't need the <> in
the explanation, as this is only to describe the command line syntax.

Signed-off-by: David Sterba <dsterba@suse.com>

0 files changed, 0 insertions, 0 deletions