Missing quotes in alias files

I just noticed, that there are some quotes missing in the HTML attributes in all of the generated alias files.

<link rel=canonical href=http://www.example.com/target/><meta name=robots content=noindex><meta charset=utf-8>

I looked into another one of my sites and there are all attributes in quotes as they should. Looking at the go-code, that there could be a template “alias.html”, but I can’t find that filename anywhere in my project. Any ideas?

$ hugo version
Hugo Static Site Generator v0.58.3/extended darwin/amd64 BuildDate: unknown

Never mind. It’s the “–minify” option, hidden in my build script for one site and not used with the other.