A case of invisible password links

I use WordPress a lot, not sure how many others out there use it too... But I'm mainly putting this here for my own reference as I don't normally modify core files, but I have in this case. I set up my sites to send out automated HTML emails using a transactional 3rd party email service. Now the problem is that the password reset email puts > at either end of the reset URL when someone resets a new password on the site. As it's a HTML email not a pain text one, Gmail sees this as unfinished code, so the link is now invisible unless you look at the raw email code or switch it to a plain text one. This wasn’t a problem before a recent redesign of the the site in questions as I had custom HTML emails set up for password resets or I hid the password reset function. I did away with these custom HTML with the redesign as I wanted to bring everything back to basic. The problem is easily solved though. I’ve removed the >’s in the wp-login.php file on line 327. I think an invisible link is more of an issue than a link being split over two lines on some occasions. I just need to rememberer to make the change each time I upgrade the core files or to find a more permanent patch/fix.