Fix curly braces in strings

[szepeviktor]

From CI output of voku/weather#8

Actually I've gone through all steps of https://github.com/szepeviktor/debian-server-tools/blob/master/webserver/Continuous-integration-Continuous-delivery.yml

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This change is 

[szepeviktor]

I see that you write

condition1
operator
condition2

I'd like to save you from being an artist.

condition1
operator condition2

The operator is like a glue that connects condition2 to condition1.

[voku]

I wrote a blog post about this whitespace thing: http://suckup.de/2020/01/do-not-fear-the-white-space-in-your-code/

e.g.