Bug in code prevents picture field from displaying an error when pictures are not required

First of all, great job on that last update where you created a way for the profile form to detect when a user has uploaded an image and remind them to reupload the file when there are other form errors. Brilliant!

I found a bug in the code relating to validation of the uploaded picture when pictures are not required. When the user uploads a picture and encounters an error on different profile field, that "reminder" error is never shown. This is because the $pic_field variable is only set inside of the if {} statement, and it needs to be moved above the if/else {}. Attached is a patch that fixes this.

Someone else please review this so we can get it submitted to the next release. (It might even be a good to create another release just for this patch?)