Accept blocks on http params

[wvidana]

Problem: nginx blocks "{}" could not be used on nginx_http_params since
a semicolon will end up appended, making the configtest to fail

This solution also allows the use of the YAML pipe "|" that which appends a
new line add the end of the string

[jdauphant]

@woqer thanks for your help.
Sorry for the delay of anwser, I just come back from travel.
I have trouble to get into it, can you give me an example? (before/after)

[wvidana]

Sorry for the late response, completely forgot about this.

What I meant to say is that, having a config like this one (with a block {}):

nginx_http_params:
      - here some { block; with; lines; }

The output is

BEFORE
        here some { block; with; lines; };
AFTER
        here some { block; with; lines; }

The trailing semicolon shouldn't be there after a block.

[jdauphant]

@woqer Ok thanks for your help, sorry for the delay