Valid URLs in a Git repo's commit message are not clickable in my version of SourceTree for Mac. This is annoying since it means I need to copy URLs in the commit message and paste them manually into the address bar of my browser in order to view them. Compare this with running `git log` in iterm2/zsh where I am able to cmd+click the link to navigate to the URL. 

The use case for me is that we are using Gerrit with a commit hook that automatically adds a link to the code review page in the commit message. If hyperlinks were clickable, I would be able to easily view the code review page directly from the link in the commit message (which is possible using `git log` as mentioned above)

Steps to reproduce:

1. Initialize new repo and make some change
2. `git commit -m "Link: https://www.google.com"`
3. View commit in SourceTree history, link is not clickable

Expected behavior:

• Valid URLs in commit messages should be clickable and open in the browser (like links in commit messages viewed in `git log` from iterm2/zsh)

Thank you!