[Freesurfer] apart.a2009s naming convention: from "_and_" to "&"

Hi guys,

I (and probably others) have noticed the aparc.a2009s label naming convention has changed in recons starting from 6.0. “_and_” has become “&”, such as in lh.G&S_subcentral. It is fixable, but it may become a bit confusing for those who use fsaverage vs. individually segmented labels in a study that uses the different versions of 6.0 and beyond (e.g., those interested in using the subpmillmeter recon option). And & is also a special character, too.

It is completely fixable, of course, but I just thought to bring this up, because it might cause confusion in some users. (For me, it was just a “why the xxxx does not my mris_divide_parcellation splittable” moment.)

Thankfully,

Jyrki