Doesn’t work as exact match

I was replacing non trailing slash urls to urls with slash at end.

Eg: example.com/contact-us (turns to) example.com/contact-us/

So when I old url as prior one and new url as the latter one, it replaces the url but at some places the hyperlink is correct with the trailing slash and it turns to example.com/contact-us// (double slash at end). Please add an exact match option