Merge pull request 'libs: Make libmtar assert on version, make download close the connection' (#6) from Amanda/OC-PsychOS2:libs/minor-fixes into master

Reviewed-on: izaya/OC-PsychOS2#6

lib/download.lua

@@ -110,6 +110,7 @@ function dl.protos.http(host, optPort, path, dest, url) -- string string string
   ns = R.read()
   f:write(ns or "")
  until not ns
+ R.close()
  f:close()
  print("Done.")
  return true

lib/libmtar.lua

@@ -38,6 +38,7 @@ function mtar.iter(stream) -- table -- function -- Given buffer *stream*, return
    return
   elseif nlen == 65535 then -- versioned header
    version = string.byte(stream:read(1))
+   assert(versions[version], "Unknown version: " .. version)
    nlen = string.unpack(versions[version].nlf, stream:read(string.packsize(versions[version].nlf)))
   end
   local name = cleanPath(stream:read(nlen))