Youtube-dl doesn't ignore '--console-title' when '--dump-single-json' is present.

[xPMo]

• I've verified and I assure that I'm running youtube-dl 2018.04.03
• At least skimmed through the README, most notably the FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones
• Checked that provided video/audio/playlist URLs (if any) are alive and playable in a browser

What is the purpose of your issue?

• Bug report (encountered problems with youtube-dl)

When printing json, escape codes are added due to the --console-title flag I have in my ~/.config/youtube-dl/config.

$ youtube-dl -J https://www.youtube.com/watch\?v\=dQw4w9WgXcQ | jq
parse error: Invalid numeric literal at line 1, column 2
$ youtube-dl --ignore-config -J https://www.youtube.com/watch\?v\=dQw4w9WgXcQ | jq
( Succeeds, prints json as expected )

This will also resolve this issue with mpv's ytdl_hook.