fix: set default features to luajit, misc luarocks spec fixes

Cargo.toml

@@ -7,6 +7,7 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [features]
+default = ["luajit"]
 luajit = ["mlua/luajit"]
 lua51 = ["mlua/lua51"]
 

blink.cmp-scm-1.rockspec

@@ -1,46 +1,45 @@
-local MODREV, SPECREV = "scm", "-1"
-rockspec_format = "3.0"
-package = "blink.cmp"
+local MODREV, SPECREV = 'scm', '-1'
+rockspec_format = '3.0'
+package = 'blink.cmp'
 version = MODREV .. SPECREV
 
 description = {
-    summary = "Performant, batteries-included completion plugin for Neovim",
-    labels = { "neovim" },
-    homepage = "https://github.com/Saghen/blink.cmp",
-    license = "MIT",
+  summary = 'Performant, batteries-included completion plugin for Neovim',
+  labels = { 'neovim' },
+  homepage = 'https://github.com/Saghen/blink.cmp',
+  license = 'MIT',
 }
 
 source = {
-    url = "http://github.com/Saghen/blink-cmp/archive/v" .. MODREV .. ".zip",
+  url = 'https://github.com/Saghen/blink.cmp/archive/v' .. MODREV .. '.zip',
 }
 
-if MODREV == "scm" then
-    source = {
-        url = "git://github.com/Saghen/blink-cmp",
-    }
-end
+if MODREV == 'scm' then source = {
+  url = 'git://github.com/Saghen/blink.cmp',
+} end
 
 dependencies = {
-    "lua == 5.1",
+  'lua == 5.1',
 }
 
 test_dependencies = {
-  "nlua",
+  'nlua', -- neovim lua interpreter
 }
 
 build_dependencies = {
-  "luarocks-build-rust-mlua",
+  'luarocks-build-rust-mlua',
 }
 
 build = {
-    type = "rust-mlua",
-    modules = {
-        "blink_cmp_fuzzy",
+  type = 'rust-mlua',
+  modules = {
+    'blink_cmp_fuzzy',
+  },
+  install = {
+    lua = {
+      ['blink-cmp.init'] = 'lua/blink-cmp.lua',
     },
-    install = {
-        lua = {
-            ["blink-cmp.init"] = "lua/blink-cmp.lua",
-        },
-    },
-    features = { "lua51" }
+  },
+  default_features = false,
+  features = { 'lua51' },
 }