use `-1` for random port

lua/go.lua

@@ -40,7 +40,7 @@ _GO_NVIM_CFG = {
   dap_debug_keymap = true, -- true: use keymap for debugger defined in go/dap.lua
   -- false: do not use keymap in go/dap.lua.  you must define your own.
   dap_vt = true, -- false, true and 'all frames'
-  dap_port = 38697, -- can be set to a number or 'random' so go.nvim will pickup a random port
+  dap_port = 38697, -- can be set to a number or `-1` so go.nvim will pickup a random port
   build_tags = "", --- you can provide extra build tags for tests or debugger
   textobjects = true,
   test_runner = "go", -- richgo, go test, richgo, dlv, ginkgo

lua/go/dap.lua

@@ -136,7 +136,7 @@ M.run = function(...)
   end
 
   local port = 38697
-  if _GO_NVIM_CFG.dap_port == "random" then
+  if _GO_NVIM_CFG.dap_port == -1 then
     math.randomseed(os.time())
     port = 38000 + math.random(1, 1000)
   end