OpenBSD 7.0 installer bug

[Pasi-Pekka Karppinen]

When doing a fresh install and you are at the point where you are configuring a 
wireless network, the installer is asking you to provide a WPA/WPA2 security 
passphrase for the wireless network - if your WPA/WPA2 passphrase starts with a 
“!” character (exclamation mark), the installer won’t accept the passphrase.