Don't parse empty lines

lib/tietopaketti/sysmon.ex

@@ -108,6 +108,7 @@ defmodule Tietopaketti.Sysmon do
     with {:ok, content} <- File.read(ProcDiskstats.path()),
          lines <- String.split(content, "\n") do
       for line <- lines,
+          line != "",
           parsed = ProcDiskstats.parse_line(line),
           Map.has_key?(state.paths_by_block, parsed.block),
           reduce: %{} do

mix.exs

@@ -4,7 +4,7 @@ defmodule Tietopaketti.MixProject do
   def project do
     [
       app: :tietopaketti,
-      version: "1.2.3",
+      version: "1.2.4",
       elixir: "~> 1.15",
       elixirc_paths: elixirc_paths(Mix.env()),
       start_permanent: Mix.env() == :prod,