GO version "Dirty little word munger" by Th3 S3cr3t Ag3nt (https://github.com/Th3S3cr3tAg3nt/Munge), written mostly by ChatGPT
-input string
input file
-level int
munge level [0-9] (default 5) (default 5)
-output string
output file
-word string
word to munge
.\main -input rockyou.txt -output rock-munge.txt