Revamp of code to use go string manipulation instead of system command line tools

[abstractninjatur]

The code contains the logic to invoke system command line tools to find and replace the set-output line. Instead of this use go string manipluation.

[sharunkumar]

Just adding my 2 cents here: doing it in go will add more complexity like you would have to handle different new line characters, encodings, etc. Using sed I think, already does all of that for you

[arunsathiya]

There are definitely pros and cons to each approach! I am going to ponder on this for a few days and make changes, and most specifically, I want to refactor the current code to be concise.

[abstractninjatur]

Just adding my 2 cents here: doing it in go will add more complexity like you would have to handle different new line characters, encodings, etc. Using sed I think, already does all of that for you

Yeah, True, IMO we can use shell script instead of go to use the system commands like sed.