Issues with line-endings and autocrlf setting after SVN to Git transition

So I'm running into the infamous issue with line-endings after
migrating an SVN repo to Git.

I'm on OS X and I currently have auto.crlf set to "input" as
recommended on this GitHub page:
http://help.github.com/dealing-with-lineendings/. I'm doing a fresh
clone of our repo and it's showing many files as having changed.

I've gotten conflicting answers to my question on Stack Overflow:
http://stackoverflow.com/questions/3161797/will-the-fix-to-correct-line-endings-in-git-repositories-make-future-diffs-usel.
Should I fix this with a commit or turn off autocrlf? I intend to use
this repo in both OS X and Windows environments. The problem with
fixing it with a commit is that the commit will change every single
line of these affected files. As I understand it from SVN, this means
that any diffs that span that commit will basically show the entire
files as being changed which is definitely frustrating.