Bug: Starting `find_string` or `replace_string` with a dash causes it to be seen as an unknown option

[NurioHin]

The title basically explains all. Take this for example:

fart.exe -w -a -i input.txt "-san" "-chan"

The expected behavior is that it will replace all "-san" with "-chan" in input.txt, but instead, it spits out the error that -san is an unknown option