[FR] Apply replace only on lines that match a pattern

[raine]

Something like:

-l, --only-lines=RE           apply replace only on lines that match a pattern

So that you can easily scope your search-and-replace to only apply on certain lines if you're replacing a common phrase.

[piranha]

I like the idea! Not sure if I'll have time to work on that soon, so pull requests are very much appreciated. :)

[raine]

Any takers?

I might take a stab at this when I have time to learn Go at the same time.