Added explicit nil return value, Bumped to 2.0.0

Update sleep.lua

.github/workflows/rockspec.yml

@@ -1,36 +0,0 @@
-name: Build & Upload Rockspec
-
-on:
-  push:
-  pull_request:
-  workflow_dispatch:
-
-concurrency:
-  group: rockspec-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: write
-    steps:
-      - name: Checkout Git submodules
-        uses: actions/checkout@v6
-        with:
-          submodules: true
-          fetch-depth: 0
-
-      - name: Install LuaRocks & build
-        run: |
-          sudo apt-get install -y luarocks
-          luarocks pack np-sleep-2.0.0-1.rockspec
-
-      - name: Upload rock artifact
-        uses: actions/upload-artifact@v4
-        if: ${{ github.ref == 'refs/heads/master' }}
-        with:
-          name: rockspec-artifact
-          path: "*.rock"
-          compression-level: 0
-          retention-days: 30

.gitignore

@@ -23,4 +23,3 @@ scripts/luapack.lua
 *.packed.lua
 *.lua.bin
 *.lua.raw
-*.rock

np-sleep-2.0.0-1.rockspec

@@ -1,21 +0,0 @@
-package = "np-sleep"
-version = "2.0.0-1"
-source = {
-   url = "https://github.com/aziascreations/LuaJIT-Sleep/archive/refs/tags/v2.0.0.tar.gz",
-   dir = "LuaJIT-Sleep-2.0.0",
-}
-description = {
-   summary = "Pure LuaJIT bindings and wrappers for Win32 and Linux sleep functions.",
-   detailed = "Module that exposes millisecond and second precision sleep functions for Linux and Windows without having to compile anything.",
-   homepage = "https://github.com/aziascreations/LuaJIT-Sleep",
-   license = "CC0 1.0 Universal"
-}
-dependencies = {
-   "lua >= 5.1"
-}
-build = {
-   type = "builtin",
-   modules = {
-      sleep = "lua/sleep.lua"
-   },
-}