ohai filesystem bug

[snacktime <snacktime@gmail.com>]

mount -l produces extra output for the filesystem label that the current regex can't handle.  While fixing this I also ran into an issue with match variables.  For some reason, if you do any operations on them, like split, it wipes out the values of other match variables so they aren't available after that operation.  Anyways here is a minimally tested fix.

lines.each do |line|

  if line =~ /^(.+?) on (.+?) type (.+?) \((.+?)\)(?:\s\[(.*?)\]$|$)/

    md = Regexp.last_match

    filesystem = md[1]

    fs[filesystem] = Mash.new unless fs.has_key?(filesystem)

    fs[filesystem][:mount] = md[2]

    fs[filesystem][:fs_type] = md[3]

    fs[filesystem][:mount_options] = md[4].split(",")

    fs[filesystem][:label] = md[5]

  end

end