dap-dlv-go .env variables with special characters problem

[Daut]

Hi,

I've noticed that dap-dlv-go doesn't send .env file variables with special characters to the server properly.

It doesn't take ' into account, and cuts off the rest of the string at the first occurence of the special character. Here's an example:

# .env file
TEST='123#456?enable=true'

Sending: 
{
  "command": "launch",
  "arguments": {
    "type": "go",
    "request": "launch",
    "name": "Debug Project - Launch",
    "mode": "debug",
    "program": "/Users/tst/projects/dap-dlv-test/main.go",
    "envFile": "/Users/tst/projects/dap-dlv-test/.env",
    "env": {
      "TEST": "'123"
    },
    "host": "localhost",
    "debugServer": 63472,
    "dlvToolPath": "/Users/tst/go/bin/dlv"
  },
  "type": "request",
  "seq": 2
}