Good point. I just checked that file ever since it was open-sourced in 10.8 and it stays exactly the same throughout all of 10.8.x (10.8 - 10.8.5) and only changes in 10.9. (You can check for yourself here: http://opensource.apple.com/)
It doesn't seem like what you said is the case here but obviously we're still missing changesets that may have been committed between 10.8.5 (Security-55179.13) and 10.9 (Security-55471). It'd be really interesting to do a git-blame on that file.
EDIT: Nevermind, that file wasn't open-sourced in 10.8. It's actually really old. (Look for directories starting with libsecurity_ssl in pre-10.8 OS X versions.) Didn't find anything particularly interesting in the old versions though.
It doesn't seem like what you said is the case here but obviously we're still missing changesets that may have been committed between 10.8.5 (Security-55179.13) and 10.9 (Security-55471). It'd be really interesting to do a git-blame on that file.
EDIT: Nevermind, that file wasn't open-sourced in 10.8. It's actually really old. (Look for directories starting with libsecurity_ssl in pre-10.8 OS X versions.) Didn't find anything particularly interesting in the old versions though.