add assume-404-regex flag

[vladertel]

Add ability to mark server response as 404 when it responds with 200 and "Not found" message

[vladertel]

ohhh, the PR got a little bit large since my IDE autoformatted several files. I hope you don't mind

[stefanoj3]

Hey! thanks for the PR, the makefile contains a command to format the code, this should bring the files you changed without wanting to back to normal.

I like the change but I'd appreciate if you took the time to make it more generic

rather than having a flag specific for 404 like

--assume-404-regex "404: page .* was not "

what do you think about changing it so it can be used with any status code?

example

--assume-status-code=404 --assume-regex="404: page .* was not "

[vladertel]

@stefanoj3 done

[vladertel]

@stefanoj3 ping. could you also make a new release and update one in homebrew?

[vladertel]

@stefanoj3 ping

[stefanoj3]

Hey, sorry for the late comeback @vladertel in the next days I will review and merge if there are no issues.

Thanks for the time spent on this contribution so far.