I want to pass multiple headers for ffplay or ffmpeg, it say I need to split with CRLF. on linux I can use `\` or `$'\r\n'` but how for windows?

```
SET CRLF=^
ffplay -v debug -i "http://example.com/test" -headers "Accept-Language: en-US,en;q=0.5%CRLF%Connection: keep-alive"

```

debug log: `Connection: keep-alive` is not sent

```
[http @ 04df3f40] No trailing CRLF found in HTTP header.
[http @ 04df3f40] request: GET /test HTTP/1.1 0KB sq=    0B f=0/0
User-Agent: Lavf/57.37.101
Accept: */*
Range: bytes=0-
Connection: close
Host: example.com
Icy-MetaData: 1
Accept-Language: en-US,en;q=0.5

```

thanks