"Add New SSH Host" wrong result if user name has spaces

[scaryrawr]

• VSCode Version: 1.49.0-insider
• OS Version: 5.7.14-200.fc32.x86_64 (Client), Windows 10 19041.450 (Host)

Steps to Reproduce:

1. Install Windows 10
2. Set up with local account, for name put full name, see that suggested user name has a space "First Last" (if not, add one).
3. Follow instructions to set up openssh.
4. From another computer, verify you can SSH to the Windows 10 machine ssh first\ last@win10machine
5. Open VS Code
6. Add a new SSH host
7. Note that in the ~/.ssh/config VS Code didn't add quotes around the user name.
8. Try to ssh in a terminal to the Windows 10 machine ssh first\ last@win10machine. -> THIS CAUSES ERROR config file is malformed.
9. Update config to have quotes around the name
10. Try to ssh in a terminal to the Windows 10 machine againe ssh first\ last@win10machine. -> Now works
11. Launch VS Code
12. Try to SSH connect to host
13. Notice that the name isn't correct -> "last@win10machine"
14. Connection fails.

[roblourens]

Just need ssh-config to publish a new version