"module(...) name deduction failed"

[AntumDeluge]

This appears to be related to #59.

config.ld: (located in ./docs/)

project = "3d_armor"
title = "3D Armor"
format = "markdown"
not_luadoc = true
boilerplate = false
wrap = false

file = {
	"api.lua",
	"armor.lua",
	"../shields/init.lua",
}

gendoc.sh: (script used to execute, located in ./docs/)

#!/usr/bin/env bash

docs="$(dirname $(readlink -f $0))"
root="$(dirname ${docs})"
config="${docs}/config.ld"

cd "${root}"

# Clean old files
rm -rf "${docs}/reference"

# Create new files
ldoc -c "${config}" -d "${docs}/reference" "${root}"

Result:

$ ./docs/gendoc.sh
reading configuration from C:/Games/Minetest/mods/3d_armor/3d_armor/docs/config.ld
module(...) name deduction failed: base c:\games\minetest\mods\3d_armor\3d_armor\ c:\games\minetest\mods\3d_armor\shields\init.lua

"items" module: (located at ./armor.lua)

--- Registered armors.
--
--  @module items

"items" submodule: (located at ../shields/init.lua)

--- Registered shields.
--
--  @submodule items

Changing ../shields/init.lua to a normal module works:

--- Registered shields.
--
--  @module shields

Result:

$ ./docs/gendoc.sh
reading configuration from C:/Games/Minetest/mods/3d_armor/3d_armor/docs/config.ld
format: using built-in markdown
output written to c:\games\minetest\mods\3d_armor\3d_armor\docs\reference

How can I make ../shields/init.lua a submodule of items?