Applying "i" modifier

[neroux]

I didnt really run a benchmark, so I wouldnt dare to say it would make any performance difference, but it might be more compact and catch all spelling variants.

I also took the liberty to add the suggestion from https://news.ycombinator.com/item?id=20874138, though I left it commented out as these two terms are rather generic and might appear in many other contexts.

PS: In this hip serverless world, I really appreciate that you are one of those who know how to choose the only correct way to indent code and place braces ;-D +1

PPS: My apologies for not placing a semicolon at the end, that is not because I dont believe there shouldnt be one ;) but most because for the commented replace calls :)